GHSA-j2pq-22jj-4pm5 · Severity: critical · Ecosystem: maven — XWiki allows remote code execution through the extension sheet
XWiki Platform is a generic wiki platform. Starting in version 3.3-milestone-1 and prior to versions 15.10.9 and 16.3.0, on instances where `Extension Repository Application` is installed, any user can execute any code requiring `programming` rights on the server. This vulnerability has been fixed in XWiki 15.10.9 and 16.3.0. Since `Extension Repository Application` is not mandatory, it can be safely disabled on instances that do not use it as a workaround. It is also possible to manually apply the patches from commit 8659f17d500522bf33595e402391592a35a162e8 to the page `ExtensionCode.ExtensionSheet` and to the page `ExtensionCode.ExtensionAuthorsDisplayer`.
Conclusion & alert: CVE-2024-55662 is rated High Exploit Risk (90.5/100): CVSS Critical severity, with high exploitation likelihood (EPSS 12.77%, 94th percentile). Core evidence: 1 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +2.95% over the last day, indicating growing attacker interest. Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
| EDB-ID | Source | Kind | Published | Link |
|---|---|---|---|---|
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-05-03 | 9.82% | 12.77% | +2.95% |
| 2 | 2026-02-07 | 12.36% | 9.82% | -2.54% |
| 3 | 2026-01-21 | — | 12.36% | — |
Full EPSS history (26 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 9.9 | 3.1 | CRITICAL |
|
3.1 | 6.0 | [email protected] |
| 8.8 | 3.1 | HIGH |
|
2.8 | 5.9 | [email protected] |
GHSA-j2pq-22jj-4pm5 · Severity: critical · Ecosystem: maven — XWiki allows remote code execution through the extension sheet
| URL | Tags |
|---|---|
| https://github.com/xwiki/xwiki-platform/commit/8659f17d500522bf33595e402391592a35a162e8 | Vendor Advisory |
| https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-j2pq-22jj-4pm5 | Product |
| https://jira.xwiki.org/browse/XWIKI-21890 | Exploit Vendor Advisory |