CVE-2025-59035
Indico vulnerable to Cross-Site Scripting via LaTeX math code
Indico is an event management system that uses Flask-Multipass, a multi-backend authentication system for Flask. Prior to version 3.3.8, there is a Cross-Site-Scripting vulnerability when rendering LaTeX math code in contribution or abstract descriptions. Users should to update to Indico 3.3.8 as soon as possible. As a workaround, only let trustworthy users create content on Indico. Note that a conference doing a Call for Abstracts actively invites external speakers (who the organizers may not know and thus cannot fully trust) to submit content, hence the need to update to a a fixed version ASAP in particular when using such workflows.
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
What each source reports
CVE List Score used
4.6
Indico vulnerable to Cross-Site Scripting via LaTeX math code
Indico is an event management system that uses Flask-Multipass, a multi-backend authentication system for Flask. Prior to version 3.3.8, there is a Cross-Site-Scripting vulnerability when rendering LaTeX math code in contribution or abstract descriptions. Users should to update to Indico 3.3.8 as soon as possible. As a workaround, only let trustworthy users create content on Indico. Note that a conference doing a Call for Abstracts actively invites external speakers (who the organizers may not know and thus cannot fully trust) to submit content, hence the need to update to a a fixed version ASAP in particular when using such workflows.
- Record
CVE-2025-59035- CVSS 3.1
- 4.6 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
EUVDEUVD-2025-27577
4.6
Indico is an event management system that uses Flask-Multipass, a multi-backend authentication system for Flask. Prior to version 3.3.8, there is a Cross-Site-Scripting vulnerability when rendering LaTeX math code in contribution or abstract descriptions. Users should to update to Indico 3.3.8 as soon as possible. As a workaround, only let trustworthy users create content on Indico. Note that a conference doing a Call for Abstracts actively invites external speakers (who the organizers may not know and thus cannot fully trust) to submit content, hence the need to update to a a fixed version ASAP in particular when using such workflows.
- Record
EUVD-2025-27577- CVSS 3.1
- 4.6 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-7cf7-9wrr-vrf4
4.6
Indico vulnerable to Cross-Site Scripting via LaTeX math code
Impact
There is a Cross-Site-Scripting vulnerability when rendering LaTeX math code in contribution or abstract descriptions.
Patches
You should to update to Indico 3.3.8 as soon as possible. See the docs for instructions on how to update.
Workarounds
Only let trustworthy users create content on Indico.
Note that a conference doing a Call for Abstracts actively invites external speakers (who the organizers may not know and thus cannot fully trust) to submit content, hence the need to update to a a fixed version ASAP in particular when using such workflows.
For more information
If you have any questions or comments about this advisory:
- Open a thread in our forum
- Email us privately at [email protected]
- Record
GHSA-7cf7-9wrr-vrf4- CVSS 3.1
- 4.6 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
NVD
4.6
Indico is an event management system that uses Flask-Multipass, a multi-backend authentication system for Flask. Prior to version 3.3.8, there is a Cross-Site-Scripting vulnerability when rendering LaTeX math code in contribution or abstract descriptions. Users should to update to Indico 3.3.8 as soon as possible. As a workaround, only let trustworthy users create content on Indico. Note that a conference doing a Call for Abstracts actively invites external speakers (who the organizers may not know and thus cannot fully trust) to submit content, hence the need to update to a a fixed version ASAP in particular when using such workflows.
- Record
CVE-2025-59035- CVSS 3.1
- 4.6 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N - CVSS 3.1
- 5.4 Medium
CVSS: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
4.6
Indico vulnerable to Cross-Site Scripting via LaTeX math code
Indico is an event management system that uses Flask-Multipass, a multi-backend authentication system for Flask. Prior to version 3.3.8, there is a Cross-Site-Scripting vulnerability when rendering LaTeX math code in contribution or abstract descriptions. Users should to update to Indico 3.3.8 as soon as possible. As a workaround, only let trustworthy users create content on Indico. Note that a conference doing a Call for Abstracts actively invites external speakers (who the organizers may not know and thus cannot fully trust) to submit content, hence the need to update to a a fixed version ASAP in particular when using such workflows.
- Record
CVE-2025-59035- CVSS 3.1
- 4.6 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
OSVGHSA-7cf7-9wrr-vrf4
4.6
Indico vulnerable to Cross-Site Scripting via LaTeX math code
Impact
There is a Cross-Site-Scripting vulnerability when rendering LaTeX math code in contribution or abstract descriptions.
Patches
You should to update to Indico 3.3.8 as soon as possible. See the docs for instructions on how to update.
Workarounds
Only let trustworthy users create content on Indico.
Note that a conference doing a Call for Abstracts actively invites external speakers (who the organizers may not know and thus cannot fully trust) to submit content, hence the need to update to a a fixed version ASAP in particular when using such workflows.
For more information
If you have any questions or comments about this advisory:
- Open a thread in our forum
- Email us privately at [email protected]
- Record
GHSA-7cf7-9wrr-vrf4- CVSS 3.1
- 4.6 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
OSVPYSEC-2026-1461
4.6
Indico vulnerable to Cross-Site Scripting via LaTeX math code
Impact
There is a Cross-Site-Scripting vulnerability when rendering LaTeX math code in contribution or abstract descriptions.
Patches
You should to update to Indico 3.3.8 as soon as possible. See the docs for instructions on how to update.
Workarounds
Only let trustworthy users create content on Indico.
Note that a conference doing a Call for Abstracts actively invites external speakers (who the organizers may not know and thus cannot fully trust) to submit content, hence the need to update to a a fixed version ASAP in particular when using such workflows.
For more information
If you have any questions or comments about this advisory:
- Open a thread in our forum
- Email us privately at [email protected]
- Record
PYSEC-2026-1461- CVSS 3.1
- 4.6 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N - Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
indicoPyPI |
through 3.3.7 | 3.3.8 |
indicoPyPI |
before 3.3.8, plus listed versions 0.98-rc10.98.00.98.10.98.20.99 Show 45 moreShow less1.01.11.1.11.1.21.21.2.11.2.1rc101.2.1rc111.2.1rc21.2.1rc41.2.1rc51.2.1rc61.2.1rc71.2.1rc91.2.21.2.2rc11.9.11.dev101.9.11.dev111.9.11.dev121.9.11.dev131.9.11.dev141.9.11.dev151.9.11.dev161.9.11.dev171.9.11.dev31.9.11.dev41.9.11.dev61.9.11.dev71.9.11.dev81.9.11.dev92.02.0.12.0.22.0.32.0a12.0rc12.0rc22.12.1.12.1.102.1.112.1.22.1.32.1.42.1.5 |
3.3.8 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2025-59035 is a medium vulnerability (CVSS 4.6) in Cern Indico, published September 10, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.21%, the 10th percentile. Fixed in indico 3.3.8.
References
github.com/indico/indico/security/advisories/GHSA-7cf7-9wrr-vrf4
github.com/indico/indico/releases/tag/v3.3.8
nvd.nist.gov/vuln/detail/CVE-2025-59035
github.com/advisories/GHSA-7cf7-9wrr-vrf4
github.com/CVEProject/cvelistV5/tree/main/cves/2025/59xxx/CVE-2025-59035.json
github.com/indico/indico
pypi.org/project/indico
Left out here: 45 versions. The JSON record has them.