CVE-2023-26477

Xwiki vulnerability

CVSS

10.0

EPSS

74.8%

EPSS pct

99th

Exploited

No known

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.

Affected vendor

Xwiki

Affected product

Xwiki

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Weakness type (CWE)

CWE-95
CWE-94 — Code Injection

Published

2023-03-02

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 74.8% reflects a high probability of exploitation activity in the wild over the next 30 days, placing it among the most exploited CVEs currently tracked.

Check your external exposure to CVE-2023-26477

Confirm whether Xwiki Xwiki is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2023-26477.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2023-26477

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2023-26477 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

Run a free external exposure scan

Are you exposed to CVE-2023-26477?

Run an instant, non-intrusive external scan to check your attack surface for CVE-2023-26477.

Start free scan

No credit card. Agentless.

Related vulnerabilities

CRITICAL

CVE-2019-20504

Kace Systems Management vulnerability

Storage Essentials vulnerability