CVE-2021-39200

Information Disclosure in wp_die() via JSONP in wordpress

Description

WordPress is a free and open-source content management system written in PHP and paired with a MySQL or MariaDB database. In affected versions output data of the function wp_die() can be leaked under certain conditions, which can include data like nonces. It can then be used to perform actions on your behalf. This has been patched in WordPress 5.8.1, along with any older affected versions via minor releases. It's strongly recommended that you keep auto-updates enabled to receive the fix.

Category

5.3
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 1.77% Top 20%
Vendor Advisory debian.org
Affected: WordPress wordpress-develop
Published at:
Updated at:

References

Link Tags
https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-m9hc-7v5q-x8q5 third party advisory
https://hackerone.com/reports/1142140 permissions required
https://www.debian.org/security/2021/dsa-4985 third party advisory vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-39200?
CVE-2021-39200 has been scored as a medium severity vulnerability.
How to fix CVE-2021-39200?
To fix CVE-2021-39200, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-39200 being actively exploited in the wild?
It is possible that CVE-2021-39200 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~2% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-39200?
CVE-2021-39200 affects WordPress wordpress-develop.
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