CVE-2021-3137 json
Cross Site Scripting (XSS) in XWiki
published 2021-01-20 5 y ago modified 2026-06-17 4 mo ago also GHSA-43hg-g44q-474q , EUVD-2021-0485
- cvss
- 5.4
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.7%
- EPSS 0.7% chance of exploitation in 30 days, percentile 55%
- public exploits
- 0
- none known
Summary
XWiki 12.10.2 allows XSS via an SVG document to the upload feature of the comment section.
Patch / fix
- maven org.xwiki.commons:xwiki-commons 12.10.3
Exploit prediction
0.74% chance of exploitation in the next 30 days, higher than 55% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- exploit-db.com https://www.exploit-db.com/exploits/49437 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 |
|---|---|---|---|
| maven | org.xwiki.commons:xwiki-commons | <12.10.3 |
12.10.3 |
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
exploit-db.com
/exploits/49437
web, exploit, third-party-advisory, vdb-entry
-
nvd.nist.gov
/vuln/detail/CVE-2021-3137
advisory
Sources
- CVE List CVE-2021-3137
- GitHub Advisory GHSA-43hg-g44q-474q
- NVD CVE-2021-3137
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.