CVE-2021-25041

Photo Gallery <= 1.5.67 - Reflected Cross-Site Scripting

2021-02-03 00:00
Thura Moe Myint (mgthuramoemyint)

Strategic Overview

Status
Patched in 1.5.68
Affected Plugin
Photo Gallery by 10Web – Mobile-Friendly Image Gallery
Affected Version
< 1.5.68
CVSS
6.1Medium
Weakness type
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE
CVE-2021-25041
View all Photo Gallery by 10Web – Mobile-Friendly Image Gallery vulnerabilities

At a glance

CVE-2021-25041 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 < 1.5.68. It carries a CVSS score of 6.1 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 1.5.68; sites on affected versions should update now. Disclosed February 2021, reported by Thura Moe Myint (mgthuramoemyint).

Vulnerability Overview

The Photo Gallery by 10Web WordPress plugin before 1.5.68 is vulnerable to Reflected Cross-Site Scripting (XSS) issues via the bwg_album_breadcrumb_0 and shortcode_id GET parameters passed to the bwg_frontend_data AJAX action

Technical Analysis

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

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

Reaching this weakness in Photo Gallery by 10Web < 1.5.68 takes a caller who can reach the endpoint. 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 1.5.68: builds < 1.5.68 are affected, anything from 1.5.68 onward is not.

Remediation

Update to version 1.5.68, 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 1.5.68 closes this, and updating the plugin is the step that ends it.

  • Firewall
  • Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2021-25041https://www.wordfence.com/threat-intel/vulnerabilities/id/65402225-99ba-49ff-807b-b8e4cf474ffbhttps://nvd.nist.gov/vuln/detail/CVE-2021-25041

Related records

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