Debug Log Manager <= 2.5.2 - Unauthenticated Stored Cross-Site Scripting via 'log_js_errors' AJAX Endpoint

Summary

CVECVE-2026-120114
StatePUBLISHED
AssignerWordfence
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-31 10:16:38 UTC
Updated2026-11-01 18:17:13 UTC
DescriptionThe 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.

Risk And Classification

Primary CVSS: v3.1 7.2 HIGH from [email protected]

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

EPSS: 0.004100000 probability, percentile 0.352830000 (date 2026-11-01)

Problem Types: CWE-79 | CWE-79 CWE-79 Improper Neutralization of Input During Web Page Generation


VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary7.2HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
3.1CNADECLARED7.2HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Qriouslad Debug Log Manager Conveniently Monitor And Inspect Errors affected 2.5.2 semver Not specified

References

ReferenceSourceLinkTags
plugins.trac.wordpress.org/browser/debug-log-manager/tags/2.5.2/classes/class-debug-log.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/debug-log-manager/tags/2.5.2/classes/class-debug-log.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/changeset [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/debug-log-manager/tags/2.5.2/bootstrap.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/debug-log-manager/tags/2.5.2/classes/class-debug-log.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/debug-log-manager/tags/2.5.2/classes/class-debug-log.php [email protected] plugins.trac.wordpress.org
www.wordfence.com/threat-intel/vulnerabilities/id/904181bc-fd56-4296-9c59-532bb... [email protected] www.wordfence.com
plugins.trac.wordpress.org/browser/debug-log-manager/tags/2.5.2/bootstrap.php [email protected] plugins.trac.wordpress.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Josef Azizov (Spoofable) (en)

Additional Advisory Data

SourceTimeEvent
CNA2026-10-30T20:56:04.000ZDisclosed

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