Translate WordPress with GTranslate < 3.0.4 - Admin+ Stored XSS

2023-08-3000:00:00

Pablo Sanchez

wordpress

gtranslate

stored xss

configuration

save request

intercept

value replacement

exploit

6 Medium

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

14.1%

JSON

Description The plugin does not sanitise and escape some of its settings, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup). This vulnerability affects multiple parameters.

1. Go to "Settings > Gtranslate"
2. Make changes to the configuration and intercept the save request
3. Replace in value of `incl_langs%5B%5D` to `</script><script>alert(1)</script>"`
4. See XSS when page is reloaded.