CVE-2026-2479
Responsive Lightbox & Gallery <= 2.7.1 - Authenticated (Author+) Server-Side Request Forgery via Remote Library Image Upload
The Responsive Lightbox & Gallery plugin for WordPress is vulnerable to Server-Side Request Forgery in all versions up to, and including, 2.7.1. This is due to the use of strpos() for substring-based hostname validation instead of strict host comparison in the ajax_upload_image() function. This makes it possible for authenticated attackers, with Author-level access and above, to make web requests to arbitrary locations originating from the web application, which can be used to query and modify information from internal services.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
5.0
Responsive Lightbox & Gallery <= 2.7.1 - Authenticated (Author+) Server-Side Request Forgery via Remote Library Image Upload
The Responsive Lightbox & Gallery plugin for WordPress is vulnerable to Server-Side Request Forgery in all versions up to, and including, 2.7.1. This is due to the use of strpos() for substring-based hostname validation instead of strict host comparison in the ajax_upload_image() function. This makes it possible for authenticated attackers, with Author-level access and above, to make web requests to arbitrary locations originating from the web application, which can be used to query and modify information from internal services.
- Record
CVE-2026-2479- CVSS 3.1
- 5.0 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N - Weakness
- CWE-918
- Updated
- 2026-11-02
EUVDEUVD-2026-8629
5.0
The Responsive Lightbox & Gallery plugin for WordPress is vulnerable to Server-Side Request Forgery in all versions up to, and including, 2.7.1. This is due to the use of strpos() for substring-based hostname validation instead of strict host comparison in the ajax_upload_image() function. This makes it possible for authenticated attackers, with Author-level access and above, to make web requests to arbitrary locations originating from the web application, which can be used to query and modify information from internal services.
- Record
EUVD-2026-8629- CVSS 3.1
- 5.0 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-p7fh-wf7x-3xhv
5.0
The Responsive Lightbox & Gallery plugin for WordPress is vulnerable to Server-Side Request...
The Responsive Lightbox & Gallery plugin for WordPress is vulnerable to Server-Side Request Forgery in all versions up to, and including, 2.7.1. This is due to the use of strpos() for substring-based hostname validation instead of strict host comparison in the ajax_upload_image() function. This makes it possible for authenticated attackers, with Author-level access and above, to make web requests to arbitrary locations originating from the web application, which can be used to query and modify information from internal services.
- Record
GHSA-p7fh-wf7x-3xhv- CVSS 3.1
- 5.0 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N - Weakness
- CWE-918
- Updated
- 2026-11-02
NVD
5.0
The Responsive Lightbox & Gallery plugin for WordPress is vulnerable to Server-Side Request Forgery in all versions up to, and including, 2.7.1. This is due to the use of strpos() for substring-based hostname validation instead of strict host comparison in the ajax_upload_image() function. This makes it possible for authenticated attackers, with Author-level access and above, to make web requests to arbitrary locations originating from the web application, which can be used to query and modify information from internal services.
- Record
CVE-2026-2479- CVSS 3.1
- 5.0 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N - Weakness
- CWE-918
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-2479 is a medium vulnerability (CVSS 5.0) in Dfactory Responsive Lightbox & Gallery, published February 25, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.27%, the 18th percentile. No source names a fixed version.
References
wordfence.com/threat-intel/vulnerabilities/id/44276b28-9509-4f59-936c-fff2ae404076?source=cve
plugins.trac.wordpress.org/browser/responsive-lightbox/tags/2.7.0/includes/class-remote-library.php
plugins.trac.wordpress.org/browser/responsive-lightbox/trunk/includes/class-remote-library.php
plugins.trac.wordpress.org/changeset/3464566?contextall=1
nvd.nist.gov/vuln/detail/CVE-2026-2479
github.com/advisories/GHSA-p7fh-wf7x-3xhv