Description
The Topcontent WordPress plugin through 1.2.1 does not properly authorise one of its request handlers and disables HTML sanitisation before storing the submitted content, allowing unauthenticated attackers to publish arbitrary posts containing malicious JavaScript on any site where its API key has never been configured.
Published: 2026-10-11
Score: 8.8 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

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Advisories

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History

Sun, 11 Oct 2026 15:00:00 +0000

Type Values Removed Values Added
Weaknesses CWE-284

Sun, 11 Oct 2026 12:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Sun, 11 Oct 2026 08:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-284
CWE-79

Sun, 11 Oct 2026 06:30:00 +0000

Type Values Removed Values Added
Description The Topcontent WordPress plugin through 1.2.1 does not properly authorise one of its request handlers and disables HTML sanitisation before storing the submitted content, allowing unauthenticated attackers to publish arbitrary posts containing malicious JavaScript on any site where its API key has never been configured.
Title Topcontent <= 1.2.1 - Unauthenticated Stored XSS via Content Webhook
References

Subscriptions

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: WPScan

Published:

Updated: 2026-10-11T11:32:42.722Z

Reserved: 2026-09-10T12:14:29.360Z

Link: CVE-2026-88903

cve-icon Vulnrichment

Updated: 2026-10-11T11:18:18.267Z

cve-icon NVD

Status : Received

Published: 2026-10-11T07:17:27.377

Modified: 2026-10-11T12:17:25.997

Link: CVE-2026-88903

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-11T16:45:06Z

Weaknesses
  • CWE-79

    Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')