General Options <= 1.1.0 - Authenticated (Administrator+) Stored Cross-Site Scripting via 'ad_contact_number' Parameter

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-6399
StatePUBLISHED
AssignerWordfence
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-20 02:16:37 UTC
Updated2026-05-20 13:54:54 UTC
DescriptionThe General Options plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to and including 1.1.0. This is due to the use of sanitize_text_field() for output escaping in the Contact Number (ad_contact_number) field — a function that strips HTML tags but does not encode double-quote characters to their HTML entity equivalent (&quot;). When the stored value is echoed inside a double-quoted HTML attribute (value="..."), an attacker-supplied double-quote character breaks out of the attribute context. Even with WordPress's wp_magic_quotes mechanism (which prefixes quotes with a backslash), the resulting \" sequence is NOT treated as an escaped quote by HTML parsers — the backslash is rendered as a literal character and the bare double-quote still closes the attribute. This makes it possible for authenticated attackers with Administrator-level access and above to inject arbitrary web scripts in the admin settings page that will execute whenever any administrator visits the General Options settings page.

Risk And Classification

Primary CVSS: v3.1 4.4 MEDIUM from [email protected]

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

EPSS: 0.000390000 probability, percentile 0.120450000 (date 2026-05-27)

Problem Types: CWE-79 | CWE-79 CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary4.4MEDIUMCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N
3.1CNADECLARED4.4MEDIUMCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N

CVSS v3.1 Breakdown

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

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Yog2515 General Options affected 1.1.0 semver Not specified

References

ReferenceSourceLinkTags
plugins.trac.wordpress.org/browser/general-options/tags/1.1.0/direct-action.php [email protected] plugins.trac.wordpress.org
www.wordfence.com/threat-intel/vulnerabilities/id/d29c69bb-4feb-477e-b18f-934ec... [email protected] www.wordfence.com
plugins.trac.wordpress.org/browser/general-options/tags/1.1.0/direct-main.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/general-options/trunk/direct-main.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/general-options/trunk/direct-action.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: Muhammad Nur Ibnu Hubab (en)

Additional Advisory Data

SourceTimeEvent
CNA2026-05-19T12:04:19.000ZDisclosed

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