Description
The Twenty20 Image Before-After plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'offset' Shortcode Attribute in all versions up to, and including, 2.0.5 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Published: 2026-10-03
Score: 6.4 Medium
EPSS: < 1% Very Low
KEV: No
Impact: Stored Cross‑Site Scripting
Action: Upgrade
AI Analysis

Impact

The Twenty20 Image Before‑After plugin permits stored XSS when the `offset` shortcode attribute is used. Input sanitization is insufficient and output is not escaped, allowing a malicious contributor or higher to embed javascript that executes for any user who views the affected page. This flaw can lead to session hijacking, credential theft, defacement or other client‑side compromise.

Affected Systems

WordPress sites running the zayedbaloch Twenty20 Image Before‑After plugin version 2.0.5 or earlier are affected. Versions after 2.0.5 contain the fix and are not vulnerable.

Risk and Exploitability

The CVSS score of 6.4 indicates a moderate severity flaw. The EPSS score is not available, and the vulnerability is not listed in CISA’s KEV catalog. The flaw requires an authenticated user with contributor‑level or higher privileges. As a result, attackers can only exploit it from within the site’s user management system. The impact is confined to the attacker’s ability to execute arbitrary scripts in the context of other site visitors, though a successful exploit does not provide direct server‑side access.

Generated by OpenCVE AI on October 3, 2026 at 08:20 UTC.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Upgrade the Twenty20 Image Before‑After plugin to version 2.0.6 or later
  • If an upgrade is not possible, remove the plugin from the site until a patch is available
  • As a temporary precaution, reduce or revoke contributor permissions on the site to limit the scope of the vulnerability

Generated by OpenCVE AI on October 3, 2026 at 08:20 UTC.

Tracking

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Advisories

No advisories yet.

History

Sat, 03 Oct 2026 16:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

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

Sat, 03 Oct 2026 07:45:00 +0000

Type Values Removed Values Added
Description The Twenty20 Image Before-After plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'offset' Shortcode Attribute in all versions up to, and including, 2.0.5 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Title Twenty20 Image Before-After <= 2.0.5 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'offset' Shortcode Attribute
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 6.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N'}

Subscriptions

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: Wordfence

Published:

Updated: 2026-10-03T15:14:13.461Z

Reserved: 2026-09-16T19:07:45.260Z

Link: CVE-2026-92767

cve-icon Vulnrichment

Updated: 2026-10-03T15:13:54.605Z

cve-icon NVD

Status : Received

Published: 2026-10-03T08:16:27.163

Modified: 2026-10-03T16:16:43.427

Link: CVE-2026-92767

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-03T08:30:18Z

Weaknesses
  • CWE-79

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