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Fencer Intel
medium 6.3

CVE-2022-31136 json

Cross-site Scripting in BookWyrm

published 4y ago modified 4mo ago also EUVD-2022-52764

cvss
6.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 48%
public exploits
0
none known

Summary

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.

Patch / fix

  • joinbookwyrm bookwyrm 0.4.1

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CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
last yr.

Exploit prediction

0.60% chance of exploitation in the next 30 days, higher than 48% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.1 6.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
NVD 3.1 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:P/A:N

Affected products

  • bookwyrm-social bookwyrm

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.