CVE-2026-120114
Debug Log Manager <= 2.5.2 - Unauthenticated Stored Cross-Site Scripting via 'log_js_errors' AJAX Endpoint
Description
The Debug Log Manager – Conveniently Monitor and Inspect Errors plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'message (and pageUrl)' parameter in all versions up to, and including, 2.5.2 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Successful exploitation requires that the site administrator has debug logging enabled with JS error logging active, and that the attacker can obtain the publicly emitted dlmVars.jsErrorLogging nonce — which is broadcast on every frontend page — to pass the nonce check on the unauthenticated endpoint.
INFO
Published Date :
Oct. 31, 2026, 10:16 a.m.
Last Modified :
Oct. 31, 2026, 10:16 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | MITRE-CVE | ||||
| CVSS 3.1 | HIGH | [email protected] |
Solution
- Update the Debug Log Manager plugin.
- Ensure input sanitization and output escaping are implemented.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-120114.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-120114 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-120114
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-120114 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-120114 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
New CVE Received by [email protected]
Oct. 31, 2026
Action Type Old Value New Value Added Description The Debug Log Manager – Conveniently Monitor and Inspect Errors plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'message (and pageUrl)' parameter in all versions up to, and including, 2.5.2 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Successful exploitation requires that the site administrator has debug logging enabled with JS error logging active, and that the attacker can obtain the publicly emitted dlmVars.jsErrorLogging nonce — which is broadcast on every frontend page — to pass the nonce check on the unauthenticated endpoint. Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N Added CWE CWE-79 Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/120xxx/CVE-2026-120114.json">CVE-2026-120114</a> Added Reference https://plugins.trac.wordpress.org/browser/debug-log-manager/tags/2.5.2/bootstrap.php#L134 Added Reference https://plugins.trac.wordpress.org/browser/debug-log-manager/tags/2.5.2/bootstrap.php#L567 Added Reference https://plugins.trac.wordpress.org/browser/debug-log-manager/tags/2.5.2/classes/class-debug-log.php#L1605 Added Reference https://plugins.trac.wordpress.org/browser/debug-log-manager/tags/2.5.2/classes/class-debug-log.php#L1728 Added Reference https://plugins.trac.wordpress.org/browser/debug-log-manager/tags/2.5.2/classes/class-debug-log.php#L2158 Added Reference https://plugins.trac.wordpress.org/browser/debug-log-manager/tags/2.5.2/classes/class-debug-log.php#L519 Added Reference https://plugins.trac.wordpress.org/changeset?reponame=&old=3754121%40debug-log-manager&new=3754121%40debug-log-manager Added Reference https://www.wordfence.com/threat-intel/vulnerabilities/id/904181bc-fd56-4296-9c59-532bbc272abd?source=cve