What is CVE-2025-25296?

CVE-2025-25296 is a medium-severity vulnerability in Humansignal Label-studio, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2025-02-14.

How severe is CVE-2025-25296?

Medium severity. CVSS v3 base score is 6.1 out of 10.

Is CVE-2025-25296 known to be exploited?

4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in Humansignal Label-studio

CVE-2025-25296

Label Studio is an open source data labeling tool. Prior to version 1.16.0, Label Studio's `/projects/upload-example` endpoint allows injection of arbitrary HTML through a `GET` request with an appropriately crafted `label_config` query pa…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.200 (95.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Humansignal Label-studio — versions < 1.16.0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

References

https://github.com/HumanSignal/label-studio/security/advisories/GHSA-wpq5-3366-mqw4 (x_refsource_CONFIRM)
https://github.com/HumanSignal/label-studio/commit/8cf6958e1e27ef6a03ed287e674470975d340885 (x_refsource_MISC)

Frequently asked questions

What is CVE-2025-25296?: CVE-2025-25296 is a medium-severity vulnerability in Humansignal Label-studio, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2025-02-14.
How severe is CVE-2025-25296?: Medium severity. CVSS v3 base score is 6.1 out of 10.
Is CVE-2025-25296 known to be exploited?: 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.