CVE-2025-53941

Public Exploit
Hollo renders posts received with form elements and allows submission

Description

Hollo is a federated single-user microblogging software designed to be federated through ActivityPub. Versions prior to 0.6.5 allow HTML form elements to be submitted, making the software vulnerable to HTML injection. Version 0.6.5 fixes the issue.

Category

6.1
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.03%
Affected: fedify-dev hollo
Published at:
Updated at:

References

Link Tags
https://github.com/fedify-dev/hollo/security/advisories/GHSA-w7gc-g3x7-hq8h
https://github.com/fedify-dev/hollo/commit/f9d25e10ba5406c27f9e87dfb01f75b6a52f2410
https://github.com/fedify-dev/hollo/releases/tag/0.6.5

Frequently Asked Questions

What is the severity of CVE-2025-53941?
CVE-2025-53941 has been scored as a medium severity vulnerability.
How to fix CVE-2025-53941?
To fix CVE-2025-53941, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-53941 being actively exploited in the wild?
It is possible that CVE-2025-53941 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-53941?
CVE-2025-53941 affects fedify-dev hollo.
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