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VulnerabilityPublished Updated

CVE-2024-43799: pillarjs send · Cross-site Scripting

Affects pillarjs sendSource CVE Database V5

0

Not known to be exploited · CVSS 5.0 Medium : upgrade to 0.19.0 when convenient.

Data as of 26 Oct 2026, 09:15 UTC

CVSS 3.1 base score
5.0Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.5% chance of exploitation in 30 days – higher than 45% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 0.19.0
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 10 Sep 2024

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Upgrade pillarjs send to 0.19.0.

Affected software

ProductAffectedFixed in
npmsendpkg:npm/sendOther threatsAffected
  • <0.19.0
Fixed in
  • 0.19.0

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

The primary mitigation is to upgrade the 'send' library to version 0.19.0 or later, where the vulnerability is patched. Organizations should audit their dependencies to identify usage of affected versions. Additionally, implement strict input validation and output encoding on all user-supplied data, especially in URL redirects and file path parameters. Employ Content Security Policy (CSP) headers to reduce the impact of potential XSS attacks. Regularly scan web applications with automated tools to detect XSS vulnerabilities. Educate developers on secure coding practices related to input handling and sanitization. Monitor web traffic for suspicious redirect patterns or script injections. Finally, maintain an up-to-date inventory of third-party libraries and apply security patches promptly.

Description

Send is a library for streaming files from the file system as a http response. Send passes untrusted user input to SendStream.redirect() which executes untrusted code. This issue is patched in send 0.19.0.

References

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