CVE-2020-15252 json
RCE in XWiki
published 6y ago modified 4mo ago also GHSA-5hv6-mh8q-q9v8 , EUVD-2020-1412
- cvss
- 8.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 3.4%
- EPSS 3.4% chance of exploitation in 30 days, percentile 88%
- public exploits
- 0
- none known
Summary
In XWiki before version 12.5 and 11.10.6, any user with SCRIPT right (EDIT right before XWiki 7.4) can gain access to the application server Servlet context which contains tools allowing to instantiate arbitrary Java objects and invoke methods that may lead to arbitrary code execution. This is patched in XWiki 12.5 and XWiki 11.10.6.
Patch / fix
- maven org.xwiki.platform:xwiki-platform-oldcore 11.10.6, 12.5
- xwiki xwiki 11.10.6, 12.5
Is CVE-2020-15252 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerExploit prediction
3.36% chance of exploitation in the next 30 days, higher than 88% of all scored CVEs (FIRST EPSS, 2026-11-09).
Exploits and checks
- jira.xwiki.org https://jira.xwiki.org/browse/XWIKI-17141 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 8.5 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H |
| NVD | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 9.0 | AV:N/AC:L/Au:S/C:C/I:C/A:C |
| GitHub | 3.1 | 8.5 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| maven | org.xwiki.platform:xwiki-platform-oldcore | <11.10.6 >=12.0, <12.5 |
11.10.6 12.5 |
Affected products
- xwiki xwiki-platform
Classification
References
-
jira.xwiki.org
/browse/XWIKI-17141
web, exploit, vendor-advisory
-
jira.xwiki.org
/browse/XWIKI-17423
web, vendor-advisory
-
github.com
/xwiki/xwiki-platform/security/advisories/GHSA-5hv6-mh8q-q9v8
web, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2020-15252
advisory
-
github.com
/xwiki/xwiki-platform
package
Sources
- CVE List CVE-2020-15252
- GitHub Advisory GHSA-5hv6-mh8q-q9v8
- NVD CVE-2020-15252
Fencer Intel 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.