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CVE-2024-21485

Dash apps vulnerable to Cross-site Scripting

6.5 MediumFix available

Versions of the package dash-core-components before 2.13.0; versions of the package dash-core-components before 2.0.0; versions of the package dash before 2.15.0; versions of the package dash-html-components before 2.0.0; versions of the package dash-html-components before 2.0.16 are vulnerable to Cross-site Scripting (XSS) when the href of the a tag is controlled by an adversary. An authenticated attacker who stores a view that exploits this vulnerability could steal the data that's visible to another user who opens that view - not just the data already included on the page, but they could also, in theory, make additional requests and access other data accessible to this user. In some cases, they could also steal the access tokens of that user, which would allow the attacker to act as that user, including viewing other apps and resources hosted on the same server. Note: This is only exploitable in Dash apps that include some mechanism to store user input to be reloaded by a different user.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
High
Privileges needed
Low
User interaction
Required

What an attacker can affect

Confidentiality
High
Integrity
Low
Availability
None

Exploit likelihood

1.49%Up 1.4 points since Feb 8, 2024
90%50%10%1%

What each source reports

CVE List Score used 6.5

Versions of the package dash-core-components before 2.13.0; versions of the package dash-core-components before 2.0.0; versions of the package dash before 2.15.0; versions of the package dash-html-components before 2.0.0; versions of the package dash-html-components before 2.0.16 are vulnerable to Cross-site Scripting (XSS) when the href of the a tag is controlled by an adversary. An authenticated attacker who stores a view that exploits this vulnerability could steal the data that's visible to another user who opens that view - not just the data already included on the page, but they could also, in theory, make additional requests and access other data accessible to this user. In some cases, they could also steal the access tokens of that user, which would allow the attacker to act as that user, including viewing other apps and resources hosted on the same server. Note: This is only exploitable in Dash apps that include some mechanism to store user input to be reloaded by a different user.

Record
CVE-2024-21485
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:L/A:N/E:P
Weakness
CWE-79, CWE-79
Updated
2026-11-02
EUVDEUVD-2024-0032 6.5

Versions of the package dash-core-components before 2.13.0; versions of the package dash-core-components before 2.0.0; versions of the package dash before 2.15.0; versions of the package dash-html-components before 2.0.0; versions of the package dash-html-components before 2.0.16 are vulnerable to Cross-site Scripting (XSS) when the href of the a tag is controlled by an adversary. An authenticated attacker who stores a view that exploits this vulnerability could steal the data that's visible to another user who opens that view - not just the data already included on the page, but they could also, in theory, make additional requests and access other data accessible to this user. In some cases, they could also steal the access tokens of that user, which would allow the attacker to act as that user, including viewing other apps and resources hosted on the same server. Note: This is only exploitable in Dash apps that include some mechanism to store user input to be reloaded by a different user.

Record
EUVD-2024-0032
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:L/A:N/E:P
Updated
2026-11-02
GitHub AdvisoriesGHSA-547x-748v-vp6p 4.8

Dash apps vulnerable to Cross-site Scripting

Versions of the package dash-core-components before 2.13.0; versions of the package dash-core-components before 2.0.0; versions of the package dash before 2.15.0; versions of the package dash-html-components before 2.0.0; versions of the package dash-html-components before 2.0.16 are vulnerable to Cross-site Scripting (XSS) when the href of the a tag is controlled by an adversary. An authenticated attacker who stores a view that exploits this vulnerability could steal the data that's visible to another user who opens that view - not just the data already included on the page, but they could also, in theory, make additional requests and access other data accessible to this user. In some cases, they could also steal the access tokens of that user, which would allow the attacker to act as that user, including viewing other apps and resources hosted on the same server.

Note:

This is only exploitable in Dash apps that include some mechanism to store user input to be reloaded by a different user.

Record
GHSA-547x-748v-vp6p
CVSS 4.0
4.8 MediumCVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:N/VI:N/VA:N/SC:H/SI:L/SA:N
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:L/A:N
Weakness
CWE-79
Updated
2026-11-02
NVD 6.5

Versions of the package dash-core-components before 2.13.0; versions of the package dash-core-components before 2.0.0; versions of the package dash before 2.15.0; versions of the package dash-html-components before 2.0.0; versions of the package dash-html-components before 2.0.16 are vulnerable to Cross-site Scripting (XSS) when the href of the a tag is controlled by an adversary. An authenticated attacker who stores a view that exploits this vulnerability could steal the data that's visible to another user who opens that view - not just the data already included on the page, but they could also, in theory, make additional requests and access other data accessible to this user. In some cases, they could also steal the access tokens of that user, which would allow the attacker to act as that user, including viewing other apps and resources hosted on the same server. Note: This is only exploitable in Dash apps that include some mechanism to store user input to be reloaded by a different user.

Record
CVE-2024-21485
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:L/A:N
CVSS 3.1
5.4 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Weakness
CWE-79
Updated
2026-11-02
OSV 6.5

Versions of the package dash-core-components before 2.13.0; versions of the package dash-core-components before 2.0.0; versions of the package dash before 2.15.0; versions of the package dash-html-components before 2.0.0; versions of the package dash-html-components before 2.0.16 are vulnerable to Cross-site Scripting (XSS) when the href of the a tag is controlled by an adversary. An authenticated attacker who stores a view that exploits this vulnerability could steal the data that's visible to another user who opens that view - not just the data already included on the page, but they could also, in theory, make additional requests and access other data accessible to this user. In some cases, they could also steal the access tokens of that user, which would allow the attacker to act as that user, including viewing other apps and resources hosted on the same server. Note: This is only exploitable in Dash apps that include some mechanism to store user input to be reloaded by a different user.

Record
CVE-2024-21485
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:L/A:N/E:P
Weakness
CWE-79
Updated
2026-11-02
OSVGHSA-547x-748v-vp6p 4.8

Dash apps vulnerable to Cross-site Scripting

Versions of the package dash-core-components before 2.13.0; versions of the package dash-core-components before 2.0.0; versions of the package dash before 2.15.0; versions of the package dash-html-components before 2.0.0; versions of the package dash-html-components before 2.0.16 are vulnerable to Cross-site Scripting (XSS) when the href of the a tag is controlled by an adversary. An authenticated attacker who stores a view that exploits this vulnerability could steal the data that's visible to another user who opens that view - not just the data already included on the page, but they could also, in theory, make additional requests and access other data accessible to this user. In some cases, they could also steal the access tokens of that user, which would allow the attacker to act as that user, including viewing other apps and resources hosted on the same server.

Note:

This is only exploitable in Dash apps that include some mechanism to store user input to be reloaded by a different user.

Record
GHSA-547x-748v-vp6p
CVSS 4.0
4.8 MediumCVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:N/VI:N/VA:N/SC:H/SI:L/SA:N
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:L/A:N
Weakness
CWE-79
Updated
2026-11-02
OSVPYSEC-2024-35 5.4

Versions of the package dash-core-components before 2.13.0; all versions of the package dash-core-components; versions of the package dash before 2.15.0; all versions of the package dash-html-components; versions of the package dash-html-components before 2.0.16 are vulnerable to Cross-site Scripting (XSS) when the href of the a tag is controlled by an adversary. An authenticated attacker who stores a view that exploits this vulnerability could steal the data that's visible to another user who opens that view - not just the data already included on the page, but they could also, in theory, make additional requests and access other data accessible to this user. In some cases, they could also steal the access tokens of that user, which would allow the attacker to act as that user, including viewing other apps and resources hosted on the same server. Note: This is only exploitable in Dash apps that include some mechanism to store user input to be reloaded by a different user.

Record
PYSEC-2024-35
CVSS 3.1
5.4 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Updated
2026-11-02
OSVPYSEC-2026-219 5.4

Versions of the package dash-core-components before 2.13.0; all versions of the package dash-core-components; versions of the package dash before 2.15.0; all versions of the package dash-html-components; versions of the package dash-html-components before 2.0.16 are vulnerable to Cross-site Scripting (XSS) when the href of the a tag is controlled by an adversary. An authenticated attacker who stores a view that exploits this vulnerability could steal the data that's visible to another user who opens that view - not just the data already included on the page, but they could also, in theory, make additional requests and access other data accessible to this user. In some cases, they could also steal the access tokens of that user, which would allow the attacker to act as that user, including viewing other apps and resources hosted on the same server. Note: This is only exploitable in Dash apps that include some mechanism to store user input to be reloaded by a different user.

Record
PYSEC-2026-219
CVSS 3.1
5.4 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Updated
2026-11-02
OSVPYSEC-2026-220 5.4

Versions of the package dash-core-components before 2.13.0; all versions of the package dash-core-components; versions of the package dash before 2.15.0; all versions of the package dash-html-components; versions of the package dash-html-components before 2.0.16 are vulnerable to Cross-site Scripting (XSS) when the href of the a tag is controlled by an adversary. An authenticated attacker who stores a view that exploits this vulnerability could steal the data that's visible to another user who opens that view - not just the data already included on the page, but they could also, in theory, make additional requests and access other data accessible to this user. In some cases, they could also steal the access tokens of that user, which would allow the attacker to act as that user, including viewing other apps and resources hosted on the same server. Note: This is only exploitable in Dash apps that include some mechanism to store user input to be reloaded by a different user.

Record
PYSEC-2026-220
CVSS 3.1
5.4 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
dash-core-components
npm
before 2.13.0
2.13.0
dash
PyPI
before 2.15.0
2.15.0
dash-html-components
npm
before 2.0.16
2.0.16
dash-html-components
PyPI
before 2.0.0
2.0.0
dash-core-components
PyPI
before 2.0.0
2.0.0
dash-html-components
PyPI
before 2.0.0, plus listed versions
0.10.00.10.10.11.00.11.0rc10.11.0rc2
Show 45 moreShow less
0.11.0rc30.11.0rc50.12.00.12.0rc10.12.0rc20.12.0rc30.13.00.13.0rc10.13.0rc20.13.0rc30.13.0rc40.13.0rc50.13.10.13.20.13.2rc10.13.30.13.40.13.50.14.00.14.0rc10.14.0rc20.14.0rc200.14.0rc210.14.0rc30.14.0rc40.14.0rc50.14.0rc60.15.00.15.0rc10.16.00.16.0rc10.2.00.2.10.2.20.2.30.3.10.3.20.3.30.3.40.3.50.3.60.3.70.3.80.4.00.4.1
2.0.0
dash-core-components
PyPI
before 2.0.0, plus listed versions
0.1.10.1.20.1.30.1.40.10.0
Show 45 moreShow less
0.10.0rc10.11.00.11.10.12.00.12.10.12.20.12.30.12.40.12.50.12.60.12.70.12.7rc10.12.7rc20.13.00.13.0rc10.13.0rc20.13.0rc30.13.0rc40.13.0rc50.13.0rc60.13.0rc70.13.0rc80.14.00.15.00.15.0rc10.15.10.15.20.15.30.15.40.15.50.15.5rc10.15.5rc20.16.00.16.0rc10.17.00.17.10.18.00.18.10.19.00.2.00.2.10.2.100.2.110.2.120.2.2
2.0.0
dash
PyPI
before 2.15.0, plus listed versions
0.0.00.17.40.17.50.17.70.17.8rc1
Show 45 moreShow less
0.17.8rc20.17.8rc30.18.00.18.10.18.20.18.30.18.3rc10.19.00.20.00.21.00.21.10.22.00.22.0rc10.22.0rc20.23.10.24.00.24.10.24.1rc10.24.20.25.00.25.10.26.00.26.10.26.1rc10.26.1rc20.26.1rc30.26.20.26.30.26.40.26.50.26.60.27.00.27.0rc10.27.0rc20.27.0rc30.27.0rc40.27.0rc50.27.0rc60.27.0rc70.27.0rc80.27.0rc90.28.00.28.10.28.20.28.3
2.15.0
dash
PyPI
before 2.13.0, 2.14.0 up to 2.15.0, plus listed versions
0.0.00.17.40.17.50.17.70.17.8rc1
Show 45 moreShow less
0.17.8rc20.17.8rc30.18.00.18.10.18.20.18.30.18.3rc10.19.00.20.00.21.00.21.10.22.00.22.0rc10.22.0rc20.23.10.24.00.24.10.24.1rc10.24.20.25.00.25.10.26.00.26.10.26.1rc10.26.1rc20.26.1rc30.26.20.26.30.26.40.26.50.26.60.27.00.27.0rc10.27.0rc20.27.0rc30.27.0rc40.27.0rc50.27.0rc60.27.0rc70.27.0rc80.27.0rc90.28.00.28.10.28.20.28.3
2.13.02.15.0
dash-core-components
PyPI
before 2.0.0, plus listed versions
0.0.00.1.10.1.20.1.30.1.4
Show 45 moreShow less
0.10.00.10.0rc10.11.00.11.10.12.00.12.10.12.20.12.30.12.40.12.50.12.60.12.70.12.7rc10.12.7rc20.13.00.13.0rc10.13.0rc20.13.0rc30.13.0rc40.13.0rc50.13.0rc60.13.0rc70.13.0rc80.14.00.15.00.15.0rc10.15.10.15.20.15.30.15.40.15.50.15.5rc10.15.5rc20.16.00.16.0rc10.17.00.17.10.17.40.17.50.17.70.17.8rc10.17.8rc20.17.8rc30.18.00.18.1
2.0.0
dash-html-components
PyPI
before 2.0.0, plus listed versions
0.0.00.10.00.10.10.11.00.11.0rc1
Show 45 moreShow less
0.11.0rc20.11.0rc30.11.0rc50.12.00.12.0rc10.12.0rc20.12.0rc30.13.00.13.0rc10.13.0rc20.13.0rc30.13.0rc40.13.0rc50.13.10.13.20.13.2rc10.13.30.13.40.13.50.14.00.14.0rc10.14.0rc20.14.0rc200.14.0rc210.14.0rc30.14.0rc40.14.0rc50.14.0rc60.15.00.15.0rc10.16.00.16.0rc10.17.40.17.50.17.70.17.8rc10.17.8rc20.17.8rc30.18.00.18.10.18.20.18.30.18.3rc10.19.00.2.0
2.0.0

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
SourceLinkDate
NucleiDash Framework - Cross-site Scripting

History

History
RecordedChangedSources
first indexedCVE List, EUVD, GitHub Advisories, Nuclei, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2024-21485 is a medium vulnerability (CVSS 6.5) in Plotly Dash, published February 2, 2024. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.49%, the 74th percentile. Fixed in dash-core-components 2.13.0.

References

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