CRITICAL

CVE-2023-26477

CVSS v3

9.8

CRITICAL

EPSS Score

45.9%

exploit probability

CISA KEV

No

known exploited

Exploitation

SSVC status

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.

Technical details

Published
3/2/2023

Frequently asked questions

What is 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.

Is CVE-2023-26477 actively exploited?

Active exploitation of CVE-2023-26477 has not been confirmed. The EPSS score is 45.9%, indicating the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2023-26477?

CVE-2023-26477 has a CVSS v3 base score of 9.8 (CRITICAL severity).

Is CVE-2023-26477 affecting your environment?

Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.