Vulnerability Details : CVE-2023-26477
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.
Products affected by CVE-2023-26477
- cpe:2.3:a:xwiki:xwiki:*:*:*:*:*:*:*:*
- cpe:2.3:a:xwiki:xwiki:*:*:*:*:*:*:*:*
- cpe:2.3:a:xwiki:xwiki:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2023-26477
0.59%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 79 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2023-26477
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST | |
|
10.0
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H |
3.9
|
6.0
|
GitHub, Inc. |
CWE ids for CVE-2023-26477
-
The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.Assigned by: nvd@nist.gov (Primary)
-
The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes code syntax before using the input in a dynamic evaluation call (e.g. "eval").Assigned by: security-advisories@github.com (Secondary)
References for CVE-2023-26477
-
https://github.com/xwiki/xwiki-platform/commit/ea2e615f50a918802fd60b09ec87aa04bc6ea8e2#diff-e2153fa59f9d92ef67b0afbf27984bd17170921a3b558fac227160003d0dfd2aR283-R284
XWIKI-19757: Improved translation macro parameters escaping in Flamin… · xwiki/xwiki-platform@ea2e615 · GitHubPatch
-
https://jira.xwiki.org/browse/XWIKI-19757
Exploit;Issue Tracking;Vendor Advisory
-
https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-x2qm-r4wx-8gpg
Exploit;Vendor Advisory
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