What is CVE-2023-29518?

CVE-2023-29518 is a critical-severity vulnerability in Xwiki, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 9.9/10. Published 2023-04-19.

How severe is CVE-2023-29518?

Critical severity. CVSS v3 base score is 9.9 out of 10.

Vulnerability in Xwiki

CVE-2023-29518

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 `Invitation.InvitationCommon`. This page is installed by default. The vulnerability has been patched in XWiki 15.0-rc-1, 14.10.1, 14.4.8, and 13.10.11. Users are advised to upgrade. There are no known workarounds for this issue.

EPSS: 0.011 (63.4th percentile) — read the EPSS interpretation.

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:L.

Affected products

Xwiki
Xwiki Xwiki-platform — versions < 13.10.11, >= 14.0.0, < 14.4.8, >= 14.5.0, < 14.10.1

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-2023-29518?: CVE-2023-29518 is a critical-severity vulnerability in Xwiki, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 9.9/10. Published 2023-04-19.
How severe is CVE-2023-29518?: Critical severity. CVSS v3 base score is 9.9 out of 10.