What is CVE-2022-27637?

CVE-2022-27637 is a medium-severity vulnerability in Pukiwiki, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2022-08-23.

How severe is CVE-2022-27637?

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

XSS in Pukiwiki

CVE-2022-27637

Reflected cross-site scripting vulnerability in PukiWiki versions 1.5.1 to 1.5.3 allows a remote attacker to inject an arbitrary script via unspecified vectors.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2022-08-23 · last modified 2026-06-17.

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.

EPSS exploit prediction

EPSS: 0.006 (45.5th percentile), scored 2026-10-05.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 46th percentile — 45.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: +0.000

Affected products

Pukiwiki
Pukiwiki Development Team — versions versions 1.5.1 to 1.5.3

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

pukiwiki.osdn.jp/ (Patch, Vendor Advisory)
jvn.jp/en/vu/JVNVU96002401/index.html (Third Party Advisory)

Frequently asked questions

What is CVE-2022-27637?: CVE-2022-27637 is a medium-severity vulnerability in Pukiwiki, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2022-08-23.
How severe is CVE-2022-27637?: Medium severity. CVSS v3 base score is 6.1 out of 10.