What is CVE-2023-4455?

CVE-2023-4455 is a medium-severity vulnerability in Wallabag, classified under Cross-Site Request Forgery (CSRF). CVSS score: 6.5/10. Published 2023-08-21.

How severe is CVE-2023-4455?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Is CVE-2023-4455 known to be exploited?

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

CSRF in Wallabag

CVE-2023-4455

Cross-Site Request Forgery (CSRF) in GitHub repository wallabag/wallabag prior to 2.6.3.

Vulnerability class: CSRF (Cross-Site Request Forgery)

Published 2023-08-21 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N.

EPSS exploit prediction

EPSS: 0.003 (22.7th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 23rd percentile — 22.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

Wallabag
Wallabag Wallabag/wallabag — versions unspecified

Weakness classification (CWE)

CWE-352 — Cross-Site Request Forgery (CSRF)

Public proof-of-concept exploits

References

huntr.dev/bounties/5ab1b206-5fe8-4737-b275-d705e76f193a (Exploit, Patch, Third Party Advisory)
github.com/wallabag/wallabag/commit/ffcc5c9062fcc8cd922d7d6d65edbe5efae96806 (Patch)

Frequently asked questions

What is CVE-2023-4455?: CVE-2023-4455 is a medium-severity vulnerability in Wallabag, classified under Cross-Site Request Forgery (CSRF). CVSS score: 6.5/10. Published 2023-08-21.
How severe is CVE-2023-4455?: Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2023-4455 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.