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© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2026-5347

19
FAUCET Score

The HM Books Gallery plugin for WordPress is vulnerable to Missing Authorization in versions up to and including 4.8.0. This is due to the absence of capability checks and nonce verification in the admin_init hook that handles the permalink settings update at line 205-209 of wp-books-gallery.php. The vulnerable code checks only for the presence of the 'permalink_structure' POST parameter before updating the 'wbg_cpt_slug' option, without verifying that the request comes from an authenticated administrator. This makes it possible for unauthenticated attackers to modify the custom post type slug for the books gallery, which changes the URL structure for all book entries and can break existing links and SEO rankings.

First published: Apr 24, 2026Last modified: Apr 24, 2026

Impacted Technologies

VendorProductVersion(s)CPE
MhmrajibWP Books Gallery – Build Stunning Book Showcases & Libraries In Minutes
>= 0, <= 4.8.0CNA affecteddefault unaffected

CVSS Data

CVSS version used by this source: 3.1

5.3MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.32%
Probability of exploitation in next 30 days
EPSS Percentile
24.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0032 is in the 14th percentile among its peer group of 23,723 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

plugins.trac.wordpress.org / browser/wp-books-gallery/tags/4.7.8/wp-books-gallery.php
plugins.trac.wordpress.org / browser/wp-books-gallery/tags/4.7.8/wp-books-gallery.php
plugins.trac.wordpress.org / browser/wp-books-gallery/tags/4.8.1/wp-books-gallery.php
plugins.trac.wordpress.org / browser/wp-books-gallery/trunk/wp-books-gallery.php
plugins.trac.wordpress.org / browser/wp-books-gallery/trunk/wp-books-gallery.php
wordfence.com / threat-intel/vulnerabilities/id/12bf1cd8-cd55-4771-b2bb-597797b1b949