CVE-2023-0096 Happyforms < 1.22.0 - Contributor+ Stored XSS

What is CVE-2023-0096?

CVE-2023-0096 is a medium-severity cross-site scripting vulnerability in Unknown Form builder to get in touch with visitors, grow your email list and collect payments — Happyforms, published on 6 Feb 2023. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

The Happyforms WordPress plugin before 1.22.0 does not validate and escape some of its block options before outputting them back in a page/post where the block is embed, which could allow users with the contributor role and above to perform Stored Cross-Site Scripting attacks.

Which versions are affected by CVE-2023-0096?

It affects 1 product.

Products include Happyforms Happyforms.

How do I fix CVE-2023-0096?

No fix has been published for CVE-2023-0096 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-2023-0096 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-0096 exists.

Other vulnerabilities in Unknown Form builder to get in touch with visitors, grow your email list and collect payments — Happyforms

• CVE-2023-48752 WordPress Happyforms Plugin <= 1.25.9 is vulnerable to Cross Site Scripting (XSS) High 7.1
• CVE-2024-44063 WordPress Happyforms plugin <= 1.26.0 - Cross Site Scripting (XSS) vulnerability Medium 6.5
• CVE-2024-23521 WordPress Happyforms plugin <= 1.25.10 - Broken Access Control vulnerability Medium 5.3
• CVE-2024-10054 Happyforms < 1.26.3 - Admin+ Stored XSS Medium 4.8

Sources

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

Also known as GHSA-34rf-vmxr-2fgx.