What is CVE-2023-27159?

CVE-2023-27159 is a high-severity vulnerability in Appwrite, classified under Server-Side Request Forgery (SSRF). CVSS score: 7.5/10. Published 2023-03-31.

How severe is CVE-2023-27159?

High severity. CVSS v3 base score is 7.5 out of 10.

SSRF in Appwrite

CVE-2023-27159

Appwrite up to v1.2.1 was discovered to contain a Server-Side Request Forgery (SSRF) via the component /v1/avatars/favicon. This vulnerability allows attackers to access network resources and sensitive information via a crafted GET request.

Vulnerability class: SSRF (Server-Side Request Forgery)

Published 2023-03-31 · last modified 2026-07-09.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.364 (98.5th percentile), scored 2026-10-07.

Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 98th percentile — 98.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.364 · newest: 0.364 · change: 0.000

Affected products

Appwrite

Weakness classification (CWE)

CWE-918 — Server-Side Request Forgery (SSRF)

References

af854a3a-2127-422b-91ae-364da2661108 (Broken Link)
github.com/appwrite/appwrite (Product)
notes.sjtu.edu.cn/gMNlpByZSDiwrl9uZyHTKA (Exploit, Third Party Advisory)
gist.github.com/b33t1e/e9e8192317c111e7897e04d2f9bf5fdb (Exploit, Third Party Advisory)
gist.github.com/b33t1e/43b26c31e895baf7e7aea2dbf9743a9a (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2023-27159?: CVE-2023-27159 is a high-severity vulnerability in Appwrite, classified under Server-Side Request Forgery (SSRF). CVSS score: 7.5/10. Published 2023-03-31.
How severe is CVE-2023-27159?: High severity. CVSS v3 base score is 7.5 out of 10.