RCE in Xwiki
CVE-2023-50723
XWiki Platform is a generic wiki platform. Starting in 2.3 and prior to versions 14.10.15, 15.5.2, and 15.7-rc-1, anyone who can edit an arbitrary wiki page in an XWiki installation can gain programming right through several cases of missing escaping in the code for displaying sections in the administration interface. This impacts the confidentiality, integrity and availability of the whole XWiki installation. Normally, all users are allowed to edit their own user profile so this should be exploitable by all users of the XWiki instance. This has been fixed in XWiki 14.10.15, 15.5.2 and 15.7RC1. The patches can be manually applied to the `XWiki.ConfigurableClassMacros` and `XWiki.ConfigurableClass` pages.
Vulnerability class: RCE (Remote Code Execution)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.9 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.012 (66.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 67th percentile — 66.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: 0.000
Affected products
- Xwiki — versions 15.6, 15.7
- Xwiki Xwiki-Platform — versions >= 2.3, < 14.10.15, >= 15.0-rc-1, < 15.5.2, >= 15.6-rc-1, < 15.7-rc-1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/xwiki/xwiki-platform/security/advisories/GHSA-qj86-p74r-7wp5 (Patch, Vendor Advisory)
- github.com/xwiki/xwiki-platform/commit/0f367aaae4e0696f61cf5a67a75edd27d1d16db6 (Patch)
- github.com/xwiki/xwiki-platform/commit/1157c1ecea395aac7f64cd8a6f484b1225416dc7 (Patch)
- github.com/xwiki/xwiki-platform/commit/749f6aee1bfbcf191c3734ea0aa9eba3aa63240e (Patch)
- github.com/xwiki/xwiki-platform/commit/bd82be936c21b65dee367d558e3050b9b6995713 (Patch)
- jira.xwiki.org/browse/XWIKI-21121 (Patch, Vendor Advisory)
- jira.xwiki.org/browse/XWIKI-21122 (Patch, Vendor Advisory)
- jira.xwiki.org/browse/XWIKI-21194 (Patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2023-50723?
- CVE-2023-50723 is a critical-severity vulnerability in Xwiki, classified under Code Injection. CVSS score: 9.9/10. Published 2023-12-15.
- How severe is CVE-2023-50723?
- Critical severity. CVSS v3 base score is 9.9 out of 10.
- Is CVE-2023-50723 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.