CVE-2021-25103

Translate WordPress with GTranslate <= 2.9.6 - Reflected Cross-Site Scripting

2022-01-10 00:00
ZhongFu Su

Strategic Overview

Status
Patched in 2.9.7
Affected Version
< 2.9.7
CVSS
4.7Medium
Weakness type
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE
CVE-2021-25103
View all Translate WordPress with GTranslate vulnerabilities

At a glance

CVE-2021-25103 is a medium-severity Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in the Translate WordPress with GTranslate WordPress plugin, affecting versions < 2.9.7. It carries a CVSS score of 4.7 (reachable over the network). Exploitation requires no authentication. The issue is fixed in version 2.9.7; sites on affected versions should update now. Disclosed January 2022, reported by ZhongFu Su.

Vulnerability Overview

The Translate WordPress with GTranslate WordPress plugin before 2.9.7 does not sanitise and escape the body parameter in the url_addon/gtranslate-email.php file before outputting it back in the page, leading to a Reflected Cross-Site Scripting issue. Note: exploitation of the issue requires knowledge of the NONCE_SALT and NONCE_KEY

Technical Analysis

The vector marks this flaw as remotely reachable over the network, and no privileges on the target site.

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

Reaching this weakness in Translate WordPress with GTranslate < 2.9.7 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 Translate WordPress with GTranslate the fix is 2.9.7: builds < 2.9.7 are affected, anything from 2.9.7 onward is not.

Remediation

Update to version 2.9.7, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to Translate WordPress with GTranslate: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Translate WordPress with GTranslate 2.9.7 closes this, and updating the plugin is the step that ends it.

  • Firewall
  • Alerts

External References

Related records

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