CVE-2023-26477

org.xwiki.platform:xwiki-platform-flamingo-theme-ui Eval Injection vulnerability

CVSS 3.1 Critical 10.0

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

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.

Key data

CVSS 3.1 Critical 10.0

Score published by GitHub_M in the CVE record.

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

Attack vector: Network
The vulnerable component can be reached over a network, possibly from the Internet.
Attack complexity: Low
No special conditions are needed. The attack can be repeated at will.
Privileges required: None
No account or privileges are needed.
User interaction: None
No action from any user is needed.
Scope: Changed
The impact can reach other components beyond the vulnerable one.
Confidentiality impact: High
Serious or total effect on the secrecy of data.
Integrity impact: High
Serious or total effect on the trustworthiness of data.
Availability impact: High
Serious or total effect on availability.

Metric	Value	What it means
Attack vector	Network	The vulnerable component can be reached over a network, possibly from the Internet.
Attack complexity	Low	No special conditions are needed. The attack can be repeated at will.
Privileges required	None	No account or privileges are needed.
User interaction	None	No action from any user is needed.
Scope	Changed	The impact can reach other components beyond the vulnerable one.
Confidentiality impact	High	Serious or total effect on the secrecy of data.
Integrity impact	High	Serious or total effect on the trustworthiness of data.
Availability impact	High	Serious or total effect on availability.

CVSS is owned and managed by FIRST.Org, Inc. (FIRST) and is used by permission. Each CVSS score on this site is shown together with its vector string, as published in the CVE record by the source named next to it. Learn more at first.org/cvss.

EPSS

Exploit Prediction Scoring System by FIRST: an estimate of the probability that exploitation activity will be observed in the next 30 days.

Score: 0.74757 (74.8% probability)
Percentile: 99.5%
Scores of: Nov 10, 2026
Model: v2026.06.15

CISA assessment as of Mar 5, 2025

Stakeholder-Specific Vulnerability Categorization (SSVC) decision points added by CISA.

Automatable: no
Technical impact: total

Weakness (CWE)

CWE catalog version 5.0.

CWE-95Improper Neutralization of Directives in Dynamically Evaluated Code

Affected products

Products listed in the CVE record, as the CNA published them.

xwiki-platform
- affected: >= 6.2.4, < 13.10.10
- affected: >= 14.0, < 14.4.6
- affected: >= 14.5, < 14.9-rc-1

References

Links listed in the CVE record. They lead to other sites, which CubePath does not control.

Timeline

ID reservedFeb 23, 2023
Record publishedMar 2, 2023
Record last updatedMar 5, 2025

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Data from the CVE Program (MITRE), CISA KEV and FIRST EPSS. CVSS is owned by FIRST and used by permission. Not affiliated with or endorsed by MITRE, CISA or FIRST. Data as of Nov 10, 2026, 19:50 UTC. Sources and licenses