Stored Cross-Site Scripting Vulnerability in WordPress Picture Gallery by WordPress
CVE-2021-47951

5.1MEDIUM

Key Information:

Vendor

WordPress
Status
Picture Gallery
Vendor
CVE Published:
10 May 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2021-47951?

The Picture Gallery plugin for WordPress, version 1.4.2, is susceptible to a stored cross-site scripting (XSS) vulnerability. This security flaw allows authenticated users to utilize the Edit Content URL field in the Access Control settings to inject malicious JavaScript code. The injected scripts are stored in the database and can be executed whenever the corresponding functionality is accessed. Exploiters leveraging this vulnerability can facilitate session hijacking and steal sensitive user credentials, posing a significant threat to website security.

Affected Version(s)

Picture Gallery 1.4.2

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2021-47951 - Proof of Concept

References

https://www.exploit-db.com/exploits/50187
exploit
https://wordpress.org/plugins/picture-gallery/
product
https://www.vulncheck.com/advisories/wordpress-picture-ga...
third-party-advisory

CVSS V4

Score:
5.1
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Aryan Chehreghani
.