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CVE-2021-26938

A stored XSS issue exists in henriquedornas 5.2.17 via online live chat.

5.4 MediumDisputed

A stored XSS issue exists in henriquedornas 5.2.17 via online live chat. NOTE: Third parties report that no such product exists. That henriquedornas is the web design agency and 5.2.17 is simply the PHP version running on this hosts

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
Low
User interaction
Required

What an attacker can affect

Confidentiality
Low
Integrity
Low
Availability
None

Exploit likelihood

0.67%Up 0.2 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 5.4

A stored XSS issue exists in henriquedornas 5.2.17 via online live chat. NOTE: Third parties report that no such product exists. That henriquedornas is the web design agency and 5.2.17 is simply the PHP version running on this hosts

Record
CVE-2021-26938
CVSS 3.1
5.4 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
CVSS 2.0
3.5 LowAV:N/AC:M/Au:S/C:N/I:P/A:N
Weakness
CWE-79
Updated
2026-11-02
CVE List No score

A stored XSS issue exists in henriquedornas 5.2.17 via online live chat. NOTE: Third parties report that no such product exists. That henriquedornas is the web design agency and 5.2.17 is simply the PHP version running on this hosts

Record
CVE-2021-26938
Updated
2026-11-02
EUVDEUVD-2021-13720 No score

A stored XSS issue exists in henriquedornas 5.2.17 via online live chat. NOTE: Third parties report that no such product exists. That henriquedornas is the web design agency and 5.2.17 is simply the PHP version running on this hosts

Record
EUVD-2021-13720
Updated
2026-11-03
GitHub AdvisoriesGHSA-9m57-3x35-vr5p 5.4

A stored XSS issue exists in henriquedornas 5.2.17 via online live chat.

A stored XSS issue exists in henriquedornas 5.2.17 via online live chat.

Record
GHSA-9m57-3x35-vr5p
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

Affected products

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD

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

In short

CVE-2021-26938 is a medium vulnerability (CVSS 5.4) in Henriquedornas, published February 10, 2021. Its validity is disputed. EPSS puts the chance of exploitation in the next 30 days at 0.67%, the 52nd percentile.

References

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