Vulnerability · Published Jan 26, 2021 · Assigned by GitHub_M

CVE-2021-21278Risk of code injection in RSSHub

High 8.6

In plain English

A high-severity injection in RSSHub from DIYgod. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.6% (higher than 76% of all known vulnerabilities).

Severity (CVSS 3.1)8.6High

Exploit odds (30 days)1.6%top 24.2% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

RSSHub is an open source, easy to use, and extensible RSS feed generator. In RSSHub before version 7f1c430 (non-semantic versioning) there is a risk of code injection. Some routes use `eval` or `Function constructor`, which may be injected by the target site with unsafe code, causing server-side security issues The fix in version 7f1c430 is to temporarily remove the problematic route and added a `no-new-func` rule to eslint.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
npm	rsshub	no fix listed	GHSA-pgjj-866w-fc5c

Affected products (as reported)

Vendor	Product	Versions
DIYgod	RSSHub	< 7f1c430

Weakness: CWE-74 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

References

https://github.com/DIYgod/RSSHub/security/advisories/GHSA-pgjj-866w-fc5c x_refsource_CONFIRM
https://github.com/DIYgod/RSSHub/commit/7f1c43094e8a82e4d8f036ff7d42568fed00699d x_refsource_MISC
https://www.npmjs.com/package/rsshub x_refsource_MISC