CVE-2021-36787 json
Cross-site Scripting in the femanager TYPO3 extension
published 2021-08-13 5 y ago modified 2026-06-17 4 mo ago also GHSA-f3rf-v9qm-9c89 , EUVD-2021-2048
- cvss
- 5.4
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.3%
- EPSS 1.3% chance of exploitation in 30 days, percentile 71%
- public exploits
- 0
- none known
Summary
The femanager extension before 5.5.1 and 6.x before 6.3.1 for TYPO3 allows XSS via a crafted SVG document.
Patch / fix
- packagist in2code/femanager 5.5.1, 6.3.1
- in2code femanager 5.5.1, 6.3.1
Exploit prediction
1.33% chance of exploitation in the next 30 days, higher than 71% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- seclists.org http://seclists.org/fulldisclosure/2022/Jan/53 referenced PoC, tagged "exploit" by a source, unverified
- packetstormsecurity.com http://packetstormsecurity.com/files/165675/TYPO3-femanager-6.3.0-Cross-Site-Scripting.html referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
| NVD | 2.0 | 3.5 | AV:N/AC:M/Au:S/C:N/I:P/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| packagist | in2code/femanager | <5.5.1 >=6.0.0, <6.3.1 |
5.5.1 6.3.1 |
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
typo3.org
/security/advisory/typo3-ext-sa-2021-010
web, patch, third-party-advisory
-
github.com
/in2code-de/femanager/commit/70f873c60f0e40ffd6a1300218ca368156fc1bf2
web
-
seclists.org
/fulldisclosure/2022/Jan/53
mailing-list, web, exploit, third-party-advisory
-
packetstormsecurity.com
/files/165675/TYPO3-femanager-6.3.0-Cross-Site-Scripting.html
web, exploit, third-party-advisory, vdb-entry
-
typo3.org
/help/security-advisories/security
web, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2021-36787
advisory
-
extensions.typo3.org
/extension/femanager
web
-
github.com
/in2code-de/femanager
package
-
github.com
/in2code-de/femanager/releases/tag/6.3.1
web
Sources
- CVE List CVE-2021-36787
- GitHub Advisory GHSA-f3rf-v9qm-9c89
- NVD CVE-2021-36787
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