CVE-2023-30623: `embano1/wip` is a GitHub Action written in Bash. Prior to version 2, the `embano1/wip` action uses the `github.event.pull_request.title` parameter i...

Description

`embano1/wip` is a GitHub Action written in Bash. Prior to version 2, the `embano1/wip` action uses the `github.event.pull_request.title` parameter in an insecure way. The title parameter is used in a run statement - resulting in a command injection vulnerability due to string interpolation. This vulnerability can be triggered by any user on GitHub. They just need to create a pull request with a commit message containing an exploit. (Note that first-time PR requests will not be run - but the attacker can submit a valid PR before submitting an invalid PR). The commit can be genuine, but the commit message can be malicious. This can be used to execute code on the GitHub runners and can be used to exfiltrate any secrets used in the CI pipeline, including repository tokens. Version 2 has a fix for this issue.

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

3.73%

88.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-77

Affected Software

Vendor	Product	Versions
Wip Project	Wip	< 2.0.0

References

https://github.com/embano1/wip/commit/c25450f77ed02c20d00b76ee3b33ff43838739a2Patch
https://github.com/embano1/wip/security/advisories/GHSA-rg3q-prf8-qxmpVendor Advisory
https://securitylab.github.com/research/github-actions-untrusted-input/Exploit, Third Party Advisory
https://github.com/embano1/wip/commit/c25450f77ed02c20d00b76ee3b33ff43838739a2Patch
https://github.com/embano1/wip/security/advisories/GHSA-rg3q-prf8-qxmpVendor Advisory
https://securitylab.github.com/research/github-actions-untrusted-input/Exploit, Third Party Advisory

Timeline

Published: Apr 24, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-30623?

`embano1/wip` is a GitHub Action written in Bash. Prior to version 2, the `embano1/wip` action uses the `github.event.pull_request.title` parameter in an insecure way. The title parameter is used in a run statement - resulting in a command injection vulnerability due to string interpolation. This vulnerability can be triggered by any user on GitHub. They just need to create a pull request with a commit message containing an exploit. (Note that first-time PR requests will not be run - but the attacker can submit a valid PR before submitting an invalid PR). The commit can be genuine, but the commit message can be malicious. This can be used to execute code on the GitHub runners and can be used to exfiltrate any secrets used in the CI pipeline, including repository tokens. Version 2 has a fix for this issue.

How severe is CVE-2023-30623?

CVE-2023-30623 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 3.73% probability of exploitation in the next 30 days.

How do I fix CVE-2023-30623?

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.