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WordPress plugin

Photo Gallery – Responsive Image Galleries by Supsystic <= 1.16.3 — Authenticated (Administrator+) Stored Cross-Site Scripting

CVE-2026-24628Published · Updated

Action summary

Affected: ≤1.16.3Update to 1.17.0 or newer

All remediation steps
Watch plugin
Severity
Medium4.4
CVSS
4.4
CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N
What does this vector mean?
AV:N Attack vector
Network
AC:H Attack complexity
High
PR:H Privileges required
High
UI:N User interaction
None
S:C Scope
Changed
C:L Confidentiality
Low
I:L Integrity
Low
A:N Availability
None
Weakness
CWE-79 Cross-Site Scripting
Required access
Unknown
Exploit prediction (EPSS)
No score
CISA KEV
Not listed
On this page8

Am I affected?

Photo Gallery by Supsystic – Image Gallery, Masonry, Albums & Lightbox gallery-by-supsystic

  1. Affected≤ 1.16.3
  2. Patched in1.17.0

Update to 1.17.0 or newer.

You are affected if you run ≤ 1.16.3. Version 1.17.0 and later are not affected by this issue.

  • Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under Photo Gallery by Supsystic – Image Gallery, Masonry, Albums & Lightbox.
  • No admin access? Run a passive check of your site. It reads public files only.

What to do

  1. Update to version 1.17.0, or a newer patched version
  2. Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
  3. Watch Photo Gallery by Supsystic – Image Gallery, Masonry, Albums & Lightbox to get an email when the next vulnerability is published.

Advisory

Source description from Wordfence Intelligence, credited to Mrreee.

The Photo Gallery – Responsive Image Galleries by Supsystic plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 1.16.3 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.

Exploits & references

Proof-of-concept & detection

No public proof-of-concept or detection template is known for this vulnerability.

Advisories & patches

More in Photo Gallery by Supsystic – Image Gallery, Masonry, Albums & Lightbox

All 6
More vulnerabilities in Photo Gallery by Supsystic – Image Gallery, Masonry, Albums & Lightbox
SeverityVulnerabilityCVEPublished
Medium4.3Cross-Site Request Forgery
≤1.21.6Update to 1.21.7
CVE-2026-119484
Medium4.3Cross-Site Request Forgery
≤1.21.0Update to 1.21.1
CVE-2026-102399
Medium5.5Authenticated (Administrator+) Stored Cross-Site Scripting
≤1.15.16Update to 1.15.17
CVE-2024-29921
Medium5.4Cross-Site Request Forgery to Plugin Settings Change
≤1.15.5Update to 1.15.6
CVE-2021-36891
High8.8Cross-Site Request Forgery
<1.8.6Update to 1.8.6
CVE-2016-10918

Same weakness (Cross-Site Scripting)

All Cross-Site Scripting
Other Cross-Site Scripting vulnerabilities
SeverityVulnerabilityCVEPublished
High7.2Unauthenticated Stored Cross-Site Scripting via Comment User-Agent Header
EZ SQL Reports Shortcode Widget and DB Backup≤5.25.25Update to 5.26.45
CVE-2026-120688
Critical9.8Unauthenticated Arbitrary File Upload via File Upload via Public Form Submission
Chatterbug Forms – Fast, Flexible WordPress Form Builder≤1.0.2Update to 1.1
CVE-2026-125055
Critical9.8Unauthenticated PHP Object Injection to Remote Code Execution via 'form' Parameter
ELEX WordPress HelpDesk & Customer Ticketing System≤3.3.9Update to 3.4.0
CVE-2026-119077
Medium5.3Unauthenticated Sensitive Information Exposure in 'search' Parameter
Customer Reviews for WooCommerce≤5.127.0Update to 5.128.0
CVE-2026-121518

Timeline

  1. CVE published

    Severity medium, CVSS 4.4

  2. Record last updated

Sources & licenses

Wordfence record
Vulnerability data
Wordfence Intelligence. [object Object] Licensed under the CC BY-SA 4.0.
CVE® identifiers
[object Object]. Used under the CVE Program. CVE® is a registered trademark of The MITRE Corporation.
CVSS / CWE
National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
VulnCrest content
Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.

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