CVE-2026-88993

MediumCVSS 6.8/10Last modified Sep 18, 2026

Description

The All Bootstrap Blocks WordPress plugin through 1.3.31 does not properly escape a block attribute before outputting it in HTML tag-name position, allowing users with Contributor-level access and above to inject arbitrary web scripts that execute when the affected content is viewed.

Metrics

CVSS 3.1 6.8/10CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-79

Affected software

VendorProductVersions
UnknownAll Bootstrap Blocks<= 1.3.31

References

Timeline

Published
Sep 18, 2026
Last modified
Sep 18, 2026
NVD status
Deferred

Related CVEs from 2026

CVE-2026-889946.6The All Bootstrap Blocks WordPress plugin through 1.3.31 does not validate a block attribute before using it to build a filesystem path thatCVE-2026-889955.3The Bookit — Booking & Appointment Calendar WordPress plugin before 2.6.0.1 does not properly restrict the data returned by an availability-CVE-2026-889966.1The WPForms – AI Form Builder for WordPress – Contact Forms, Payment Forms, Survey Form, Quiz & More plugin for WordPress is vulnerable to RCVE-2026-889976.8The JSM Show Post Metadata WordPress plugin before 4.9.1 does not properly escape a post meta key before outputting it into an inline event-CVE-2026-889985.3The Tickera WordPress plugin before 3.6.0.4 does not correctly verify the integrity of incoming payment notifications, and the validated sigCVE-2026-889994.3The Redux Framework plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 4.5.14 This is due to tCVE-2026-89006.4The Simple SEO Slideshow plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Shortcode Attributes in all versions up to, aCVE-2026-890004.1The WPeMatico RSS Feed Fetcher WordPress plugin before 2.8.27 does not perform a capability check or validate the destination of a user-suppCVE-2026-890014.9The WPeMatico RSS Feed Fetcher WordPress plugin before 2.8.27 does not verify that a user running a feed campaign is permitted to publish coCVE-2026-890026.8The WPeMatico RSS Feed Fetcher WordPress plugin before 2.8.26 does not sanitize and escape content it retrieves from a user-supplied source CVE-2026-890034.1The WPeMatico RSS Feed Fetcher WordPress plugin before 2.8.27 does not perform a capability check before fetching a user-supplied URL and reCVE-2026-890042.7The WPeMatico RSS Feed Fetcher WordPress plugin before 2.8.26 does not verify ownership or authorization before returning a campaign's store
CVE-2026-88993: Medium severity, CVSS 6.8 | Vulnix