CVE-2022-4830 Paid Memberships Pro < 2.9.9 - Contributor+ Stored XSS via Shortcode

What is CVE-2022-4830?

CVE-2022-4830 is a medium-severity cross-site scripting vulnerability in Unknown Paid Memberships Pro, published on 13 Feb 2023. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

The Paid Memberships Pro WordPress plugin before 2.9.9 does not validate and escape some of its shortcode attributes before outputting them back in the page, which could allow users with a role as low as contributor to perform Stored Cross-Site Scripting attacks which could be used against high privilege users such as admins.

Weakness: CWE-79

Which versions are affected by CVE-2022-4830?

It affects 1 product.

Products include Strangerstudios Paid Memberships Pro.

How do I fix CVE-2022-4830?

No fix has been published for CVE-2022-4830 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2022-4830 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-4830 exists.

Other vulnerabilities in Unknown Paid Memberships Pro

• CVE-2023-23488 SQL injection in Paid Memberships Pro WordPress Plugin Critical 9.8
• CVE-2021-25114 Paid Memberships Pro < 2.6.7 - Unauthenticated Blind SQL Injection Critical 9.8
• CVE-2023-0631 Paid Memberships Pro < 2.9.12 - Subscriber+ SQL Injection High 8.8
• CVE-2021-20678 SQL injection in Paid Memberships Pro High 8.8
• CVE-2024-37486 WordPress Paid Memberships Pro plugin <= 3.0.5 - Authenticated SQL Injection vulnerability High 7.6

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-wcmj-f23c-wrx2.