Is CVE-2021-47951 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2021-47951 being exploited in the wild.

How severe is CVE-2021-47951?

Medium severity, with a CVSS score of 6.4, published 10 May 2026.

Which products and versions are affected?

VideoWhisper Picture Gallery 1.4.2.

Is there a fix for CVE-2021-47951?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2021-47951 attacked?

It is attacked over the network, in a network appliance.

Am I affected by CVE-2021-47951?

Check whether you run VideoWhisper Picture Gallery at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2021-47951: videowhisper Picture Gallery stored XSS in Access Control settings

CVE-2021-47951 · Severity: medium · CVSS 6.4 · Published 2026-05-10

The Picture Gallery plugin for WordPress, which allows users to manage and upload images, contains a security flaw in its access control settings. An attacker with basic account access can inject malicious scripts into the plugin's configuration. If triggered, these scripts could allow the attacker to steal user session information or hijack administrative accounts, potentially compromising the entire website.

Vendors: VideoWhisper.

Quick answers

Is CVE-2021-47951 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2021-47951 being exploited in the wild.
How severe is CVE-2021-47951?: Medium severity, with a CVSS score of 6.4, published 10 May 2026.
Which products and versions are affected?: VideoWhisper Picture Gallery 1.4.2.
Is there a fix for CVE-2021-47951?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2021-47951 attacked?: It is attacked over the network, in a network appliance.
Am I affected by CVE-2021-47951?: Check whether you run VideoWhisper Picture Gallery at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A stored cross-site scripting (XSS) vulnerability exists in the WordPress Picture Gallery plugin version 1.4.2. The flaw is located in the 'Edit Content URL' input field within the Access Control tab of the plugin's options. An authenticated attacker can submit a malicious JavaScript payload that is stored in the database without proper sanitization. This script executes in the context of any user (including administrators) who accesses the affected settings page, potentially leading to session hijacking, credential theft, or unauthorized administrative actions. A proof-of-concept exploit using an alert payload has been publicly disclosed.

Affected products

videowhisper Picture Gallery 1.4.2

Timeline

2021-08-06: disclosed: Vulnerability discovered and exploit authored
2021-08-10: other: Exploit published on Exploit-DB
2026-05-10: advisory: CVE published/updated via VulnCheck

References

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