CVE-2023-26843 Cross-site scripting in n/a

What is CVE-2023-26843?

CVE-2023-26843 is a medium-severity cross-site scripting vulnerability in Churchcrm Churchcrm, published on 25 Apr 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

A stored Cross-site scripting (XSS) vulnerability in ChurchCRM 4.5.3 allows remote attackers to inject arbitrary web script or HTML via the NoteEditor.php.

Weakness: CWE-79

Which versions are affected by CVE-2023-26843?

It affects 1 product.

Products include Churchcrm Churchcrm.

How do I fix CVE-2023-26843?

No fix has been published for CVE-2023-26843 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-2023-26843 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-26843 exists.

Public exploit code: 1 Nuclei template.

Other vulnerabilities in Churchcrm Churchcrm

• CVE-2026-39337 ChurchCRM Affected by Unauthenticated RCE in Install Wizard Critical 10.0
• CVE-2025-62521 ChurchCRM has unauthenticated RCE in its Install Wizard Critical 10.0
• CVE-2025-68110 ChurchCRM discloses database information on error message Critical 10.0
• CVE-2024-53438 SQL injection in n/a Critical 9.8
• CVE-2024-25894 SQL injection in n/a Critical 9.8

All Churchcrm Churchcrm vulnerabilities

Sources

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

Also known as GHSA-v8x9-5c6f-x77m.