What is CVE-2023-26491?

CVE-2023-26491 is a medium-severity vulnerability in Diygod Rsshub, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2023-03-03.

How severe is CVE-2023-26491?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Diygod Rsshub

CVE-2023-26491

RSSHub is an open source and extensible RSS feed generator. When the URL parameters contain certain special characters, it returns an error page that does not properly handle XSS vulnerabilities, allowing for the execution of arbitrary JavaScript code. Users who access the deliberately constructed URL are affected. This vulnerability was fixed in version c910c4d28717fb860fbe064736641f379fab2c91. Please upgrade to this or a later version, there are no known workarounds.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2023-03-03 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L.

EPSS exploit prediction

EPSS: 0.004 (35.3th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 35th percentile — 35.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Diygod Rsshub — versions < 1.0.0-master.c910c4d
Rsshub

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

github.com/DIYgod/RSSHub/security/advisories/GHSA-32gr-4cq6-5w5q (Patch, Vendor Advisory)
github.com/DIYgod/RSSHub/commit/c910c4d28717fb860fbe064736641f379fab2c91 (Patch)

Frequently asked questions

What is CVE-2023-26491?: CVE-2023-26491 is a medium-severity vulnerability in Diygod Rsshub, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2023-03-03.
How severe is CVE-2023-26491?: Medium severity. CVSS v3 base score is 5.4 out of 10.