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Drupal Reverse Proxy Header allows Manipulating User-Controlled Variables

Moderate severity GitHub Reviewed Published Oct 30, 2025 to the GitHub Advisory Database • Updated Oct 30, 2025

Package

composer drupal/reverse_proxy_header (Composer)

Affected versions

< 1.1.2

Patched versions

1.1.2

Description

Improper Validation of Consistency within Input vulnerability in Drupal Reverse Proxy Header allows Manipulating User-Controlled Variables. This issue affects Reverse Proxy Header: from 0.0.0 before 1.1.2.

References

Published by the National Vulnerability Database Oct 30, 2025
Published to the GitHub Advisory Database Oct 30, 2025
Reviewed Oct 30, 2025
Last updated Oct 30, 2025

Severity

Moderate

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

EPSS score

Exploit Prediction Scoring System (EPSS)

This score estimates the probability of this vulnerability being exploited within the next 30 days. Data provided by FIRST.
(22nd percentile)

Weaknesses

Improper Validation of Consistency within Input

The product receives a complex input with multiple elements or fields that must be consistent with each other, but it does not validate or incorrectly validates that the input is actually consistent. Learn more on MITRE.

CVE ID

CVE-2025-10929

GHSA ID

GHSA-fg8x-q69g-4qp3

Source code

No known source code
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