# CVE-2025-65754: GO-2025-4228 - Algernon Cross-Site Scripting vulnerability in github.com/xyproto/algernon

Source: https://junglewise.ai/threats/cve-2025-65754-algernon-cross-site-scripting-vulnerability  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2025-12-10  
License: CC BY 4.0 with a link back

CVE-2025-65754 · Severity: medium · CVSS 6.1 · Published 2025-12-10

Cross Site Scripting vulnerability in Algernon v1.17.4 allows attackers to execute arbitrary code via injecting a crafted payload into a filename.

Technologies: [github.com/xyproto/algernon (Go)](https://junglewise.ai/threats/technologies/github-com-xyproto-algernon). Vendors: [Go](https://junglewise.ai/threats/vendors/go).

## Quick answers

**Is CVE-2025-65754 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2025-65754 being exploited in the wild.

**How severe is CVE-2025-65754?** Medium severity, with a CVSS score of 6.1, published 10 December 2025.

**Which products and versions are affected?** github.com/xyproto/algernon (Go) SEMVER:introduced=0,fixed=1.17.5.

**Is there a fix for CVE-2025-65754?** Yes. github.com/xyproto/algernon (Go): upgrade to 1.17.5 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected by CVE-2025-65754?** Check whether you run Algernon Project Algernon or github.com/xyproto/algernon (Go) 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.

## How to fix

- github.com/xyproto/algernon (Go): upgrade to 1.17.5 or later

  ```sh
  go get github.com/xyproto/algernon@v1.17.5
  ```


## Affected products

- Algernon Project Algernon
- github.com/xyproto/algernon (Go) SEMVER:introduced=0,fixed=1.17.5

## Identifiers

- CVE-2025-65754
- GHSA-8jqm-8qm3-qgqm
- GO-2025-4228

## Related threats

- [xyproto Algernon source disclosure via NTFS filename manipulation](https://junglewise.ai/threats/cve-2026-52792-xyproto-algernon-source-disclosure-via-ntfs-filename-manipulation)
- [GO-2026-5300 - Algernon: Auto-refresh SSE event server binds to all interfaces with Access-Control-Allow-Origin: * and…](https://junglewise.ai/threats/go-2026-5300-algernon-auto-refresh-sse-event-server-binds-to-all-459dcf1f)
- [xyproto Algernon path traversal and RCE via Host header](https://junglewise.ai/threats/cve-2026-48126-xyproto-algernon-path-traversal-and-rce-via-host-header)
- [xyproto Algernon permissive CORS policy in SSE event server](https://junglewise.ai/threats/cve-2026-46431-xyproto-algernon-permissive-cors-policy-in-sse-event-server)
- [xyproto Algernon information disclosure in single-file mode](https://junglewise.ai/threats/cve-2026-45728-xyproto-algernon-information-disclosure-in-single-file-mode)