What is CVE-2023-0740?

CVE-2023-0740 is a critical-severity vulnerability in Answer, classified under Cross-site Scripting. CVSS score: 9.0/10. Published 2023-02-08.

How severe is CVE-2023-0740?

Critical severity. CVSS v3 base score is 9.0 out of 10.

XSS in Answer

CVE-2023-0740

Cross-site Scripting (XSS) - Stored in GitHub repository answerdev/answer prior to 1.0.4.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2023-02-08 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.007 (51.8th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 52nd percentile — 51.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

Answer
Answerdev Answerdev/answer — versions unspecified

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

github.com/answerdev/answer/commit/c3001de52af91f09c96e701facbce0b9fa0c98ad (Patch)
huntr.dev/bounties/802ee76d-fe01-482b-a9a4-34699a7c9110 (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2023-0740?: CVE-2023-0740 is a critical-severity vulnerability in Answer, classified under Cross-site Scripting. CVSS score: 9.0/10. Published 2023-02-08.
How severe is CVE-2023-0740?: Critical severity. CVSS v3 base score is 9.0 out of 10.