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CVE-2025-53641

HIGHCVSS 8.2/10EPSS 0.25%

Last modified

CVE-2025-53641 is a high-severity vulnerability rated 8.2/10 on the CVSS scale. Postiz is an AI social media scheduling tool. From 1.45.1 to 1.62.3, the Postiz frontend application allows an attacker to inject arbitrary HTTP headers into the middleware pipeline. EPSS estimates a 0.25% chance of exploitation in the next 30 days.

Description

Postiz is an AI social media scheduling tool. From 1.45.1 to 1.62.3, the Postiz frontend application allows an attacker to inject arbitrary HTTP headers into the middleware pipeline. This flaw enables a server-side request forgery (SSRF) condition, which can be exploited to initiate unauthorized outbound requests from the server hosting the Postiz application. This vulnerability is fixed in 1.62.3.

Metrics

CVSS 3.1
8.2/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N

EPSS Probability
0.25%

15.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

References

Timeline

Published
Last Modified
Status
Deferred

Frequently Asked Questions

What is CVE-2025-53641?
Postiz is an AI social media scheduling tool. From 1.45.1 to 1.62.3, the Postiz frontend application allows an attacker to inject arbitrary HTTP headers into the middleware pipeline. This flaw enables a server-side request forgery (SSRF) condition, which can be exploited to initiate unauthorized outbound requests from the server hosting the Postiz application. This vulnerability is fixed in 1.62.3.
How severe is CVE-2025-53641?
CVE-2025-53641 has a CVSS score of 8.2/10 (HIGH severity). The EPSS model estimates a 0.25% probability of exploitation in the next 30 days.
How do I fix CVE-2025-53641?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-53641?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST