CVE-2023-26477

Public Exploit
org.xwiki.platform:xwiki-platform-flamingo-theme-ui Eval Injection vulnerability

Description

XWiki Platform is a generic wiki platform. Starting in versions 6.3-rc-1 and 6.2.4, it's possible to inject arbitrary wiki syntax including Groovy, Python and Velocity script macros via the `newThemeName` request parameter (URL parameter), in combination with additional parameters. This has been patched in the supported versions 13.10.10, 14.9-rc-1, and 14.4.6. As a workaround, it is possible to edit `FlamingoThemesCode.WebHomeSheet` and manually perform the changes from the patch fixing the issue.

Categories

10.0
CVSS
Severity: Critical
CVSS 3.1 •
EPSS 49.26% Top 5%
Vendor Advisory github.com Vendor Advisory xwiki.org
Affected: xwiki xwiki-platform
Published at:
Updated at:

References

Link Tags
https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-x2qm-r4wx-8gpg exploit vendor advisory
https://github.com/xwiki/xwiki-platform/commit/ea2e615f50a918802fd60b09ec87aa04bc6ea8e2#diff-e2153fa59f9d92ef67b0afbf27984bd17170921a3b558fac227160003d0dfd2aR283-R284 patch
https://jira.xwiki.org/browse/XWIKI-19757 issue tracking exploit vendor advisory

Frequently Asked Questions

What is the severity of CVE-2023-26477?
CVE-2023-26477 has been scored as a critical severity vulnerability.
How to fix CVE-2023-26477?
To fix CVE-2023-26477, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-26477 being actively exploited in the wild?
It is possible that CVE-2023-26477 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~49% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-26477?
CVE-2023-26477 affects xwiki xwiki-platform.
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