What is CVE-2023-29521?

CVE-2023-29521 is a high-severity vulnerability in Xwiki, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 8.4/10. Published 2023-04-19.

How severe is CVE-2023-29521?

High severity. CVSS v3 base score is 8.4 out of 10.

Vulnerability in Xwiki

CVE-2023-29521

XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. Any user with view rights can execute arbitrary Groovy, Python or Velocity code in XWiki leading to full access to the XWiki installation. The root cause is improper escaping of `Macro.VFSTreeMacro`. This page is not installed by default.This vulnerability has been patched in XWiki 15.0-rc-1, 14.10.2, 14.4.8, 13.10.11. Users are advised to upgrade. There are no known workarounds for this vulnerability.

EPSS: 0.011 (63.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.4 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:L.

Affected products

Xwiki
Xwiki Xwiki-platform — versions < 13.10.11, >= 14.0.0, < 14.4.8, >= 14.5.0, < 14.10.2

Weakness classification (CWE)

CWE-74 — Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection)

References

security-advisories@github.com (x_refsource_CONFIRM, Exploit, Patch, Vendor Advisory)
security-advisories@github.com (Patch, x_refsource_MISC)
security-advisories@github.com (Exploit, Patch, x_refsource_MISC, Issue Tracking, Vendor Advisory)

Frequently asked questions

What is CVE-2023-29521?: CVE-2023-29521 is a high-severity vulnerability in Xwiki, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 8.4/10. Published 2023-04-19.
How severe is CVE-2023-29521?: High severity. CVSS v3 base score is 8.4 out of 10.