# CVE-2023-51769: Frappe cross-site scripting in blog and exception pages

Source: https://junglewise.ai/threats/cve-2023-51769-frappe-cross-site-scripting-in-blog-and-exception-pages  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-14. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2023-51769 · Severity: medium · CVSS 6.1 · Published 2026-09-14

Frappe is an open-source web framework used to build business applications. A cross-site scripting (XSS) vulnerability in Frappe allows attackers to inject malicious code into blog and exception pages when a user clicks on a specially crafted link, potentially stealing session data or performing unauthorized actions on behalf of the victim.

Technologies: [Frappe](https://junglewise.ai/threats/technologies/frappe). Vendors: [Frappe](https://junglewise.ai/threats/vendors/frappe).

## Quick answers

**Is CVE-2023-51769 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2023-51769 being exploited in the wild.

**How severe is CVE-2023-51769?** Medium severity, with a CVSS score of 6.1, published 14 September 2026.

**Which products and versions are affected?** Frappe before 14.49.0.

**Is there a fix for CVE-2023-51769?** A patch was published on 2023-12-11: Fixed in version 14.49.0 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2023-51769 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2023-51769?** Check whether you run Frappe at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

The vulnerability is a reflected XSS flaw affecting Frappe versions before 14.49.0, where user-supplied input in the request URL is not properly sanitized before being rendered on blog and exception pages. An attacker can craft a malicious URL containing HTML/JavaScript payload that executes in the victim's browser context when clicked. The attack requires user interaction (victim must click the link) and does not require authentication. The impact is limited to standard XSS effects such as session hijacking, credential theft, or malware distribution. The vulnerability is patched in Frappe version 14.49.0 and later.

## Affected products

- Frappe Frappe before 14.49.0

## Timeline

- 2023-12-11: disclosed
- 2023-12-11: patched: Fixed in version 14.49.0

## References

- [https://github.com/frappe/frappe/compare/v14.48.1...v14.49.0](https://github.com/frappe/frappe/compare/v14.48.1...v14.49.0)
- [https://github.com/frappe/frappe/security/advisories/GHSA-439c-3956-r8q7](https://github.com/frappe/frappe/security/advisories/GHSA-439c-3956-r8q7)

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