CVE-2021-24310

Photo Gallery <= 1.5.66 - Authenticated Stored Cross-Site Scripting via Gallery Title

2021-05-12 00:00
avolume

Strategic Overview

Status
Patched in 1.5.67
Affected Plugin
Photo Gallery by 10Web – Mobile-Friendly Image Gallery
Affected Version
< 1.5.67
CVSS
4.8Medium
Weakness type
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE
CVE-2021-24310
View all Photo Gallery by 10Web – Mobile-Friendly Image Gallery vulnerabilities

At a glance

CVE-2021-24310 is a medium-severity Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in the Photo Gallery by 10Web WordPress plugin, affecting versions < 1.5.67. It carries a CVSS score of 4.8 (reachable over the network; low attack complexity). Exploitation requires an authenticated account. The issue is fixed in version 1.5.67; sites on affected versions should update now. Disclosed May 2021, reported by avolume.

Vulnerability Overview

The Photo Gallery by 10Web - Mobile-Friendly Image Gallery WordPress plugin before 1.5.67 did not properly sanitise the gallery title, allowing high privilege users to create one with XSS payload in it, which will be triggered when another user will view the gallery list or the affected gallery in the admin dashboard. This is due to an incomplete fix of CVE-2019-16117

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed.

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Reaching this weakness in Photo Gallery by 10Web < 1.5.67 takes any authenticated account. Cross-site scripting happens when input from a request is written into a page without being escaped for the context it lands in, so the browser parses attacker-supplied text as markup or script.

Injected script runs with the privileges of whoever views the affected page, which is how these flaws turn into administrator session theft, silent account creation or persistent backdoors in page content. For Photo Gallery by 10Web the fix is 1.5.67: builds < 1.5.67 are affected, anything from 1.5.67 onward is not.

Remediation

Update to version 1.5.67, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to Photo Gallery by 10Web: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Photo Gallery by 10Web 1.5.67 closes this, and updating the plugin is the step that ends it.

  • Firewall
  • Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2021-24310https://www.wordfence.com/threat-intel/vulnerabilities/id/6d564606-695e-4e8c-90de-1d55afc06103https://nvd.nist.gov/vuln/detail/CVE-2021-24310

Related records

Vulnerability data © Defiant, Inc., provided under the Wordfence Intelligence T&C