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CVE Record

CVE-2026-0693: Allow HTML in Category Descriptions <= 1.2.4 - Authenticated (Administrator+) Stored Cross-Site Scripting via Category Descriptions

The Allow HTML in Category Descriptions plugin for WordPress is vulnerable to Stored Cross-Site Scripting via category descriptions in all versions up to, and including, 1.2.4. This is due to the plugin unconditionally removing the `wp_kses_data` output filter for term_description, link_description, link_notes, and user_description fields without checking user capabilities. This makes it possible for authenticated attackers, with administrator-level access and above, to inject arbitrary web scripts in category descriptions that will execute whenever a user accesses a page where the category description is displayed. This only affects multi-site installations and installations where unfiltered_html has been disabled.

MediumCVSS 4.4Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

A WordPress plugin can let site administrators store unsafe HTML/script in category descriptions. This can run in visitors’ browsers when affected descriptions are displayed. The risk is limited because it requires administrator-level access and only applies to multisite or sites where unfiltered_html is disabled.

Executive priority

Handle in normal vulnerability remediation cycles unless the plugin is used on shared multisite environments with many administrators. Prioritize if admin accounts are broadly delegated or poorly controlled.

Technical view

CVE-2026-0693 is stored XSS in Allow HTML in Category Descriptions up to 1.2.4. The plugin removes WordPress sanitization filters for description fields without capability checks, including term_description. CVSS 3.1 is 4.4. CWE-79 applies.

Likely exposure

Exposure is likely limited to WordPress sites using this plugin at version 1.2.4 or earlier, specifically multisite deployments or configurations where unfiltered_html is disabled.

Exploitation context

Sources state exploitation requires authenticated administrator-level access or higher. No provided source or KEV entry indicates active exploitation. Impact is browser-side script execution where affected category descriptions render.

Researcher notes

The source bundle does not identify a fixed version. The structured affected data is sparse, but the narrative and Wordfence reference identify versions up to and including 1.2.4.

Mitigation direction

  • Check WordPress plugin/vendor guidance for an updated version or official remediation.
  • Disable or remove the plugin if HTML category descriptions are not required.
  • Limit administrator access to trusted users only.
  • Audit category descriptions for unexpected HTML or script content.

Validation and detection

  • Inventory WordPress sites for Allow HTML in Category Descriptions.
  • Identify plugin versions at or below 1.2.4.
  • Confirm whether WordPress multisite is enabled.
  • Confirm whether unfiltered_html is disabled.
  • Review category description content and relevant admin activity logs.
Prepared
Confidence
medium
Sources
5

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · medium confidence lookup

CWE-79: User-session and phishing behavior lookup

Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

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cve · low confidence lookup

CVE-2026-0693 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
4.4 (3.1)
Known Exploited
No
Published

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

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
0Timeline events
0ADP providers
4Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
4.4CVSS 3.1MediumCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N1.32.7Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

4.4Medium
CVSS 3.1 vector shape for CVE-2026-0693Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
arnoesterhuizenAllow HTML in Category Descriptions0unaffected
Weakness

CWE details

CWE-79

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.