What is CVE-2022-31136?

CVE-2022-31136 is a medium-severity vulnerability in Bookwyrm-Social Bookwyrm, classified under Cross-site Scripting. CVSS score: 6.3/10. Published 2022-07-07.

How severe is CVE-2022-31136?

Medium severity. CVSS v3 base score is 6.3 out of 10.

XSS in Bookwyrm-Social Bookwyrm

CVE-2022-31136

Bookwyrm is an open source social reading and reviewing program. Versions of Bookwyrm prior to 0.4.1 did not properly sanitize html being rendered to users. Unprivileged users are able to inject scripts into user profiles, book descriptions, and statuses. These vulnerabilities may be exploited as cross site scripting attacks on users viewing these fields. Users are advised to upgrade to version 0.4.1. There are no known workarounds for this issue.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2022-07-07 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L.

EPSS exploit prediction

EPSS: 0.006 (45.6th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 46th percentile — 45.6% 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

Bookwyrm-Social Bookwyrm — versions < 0.4.1
Joinbookwyrm Bookwyrm

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

github.com/bookwyrm-social/bookwyrm/security/advisories/GHSA-2cfh-v7rf-pxfp (Third Party Advisory)
github.com/bookwyrm-social/bookwyrm/commit/fe33fdcf564a6a5667aef75d5456bea08fea… (Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2022-31136?: CVE-2022-31136 is a medium-severity vulnerability in Bookwyrm-Social Bookwyrm, classified under Cross-site Scripting. CVSS score: 6.3/10. Published 2022-07-07.
How severe is CVE-2022-31136?: Medium severity. CVSS v3 base score is 6.3 out of 10.