Connect your agent
AdvisoriesCriticalCheck your lockfilePluginHow it worksPricing Connect your agent

Advisory record · GHSA-r6g8-jmj9-g945

Improper Restriction of Rendered UI Layers or Frames in yourls

CVSS 6.5 MediumEPSS 0.0040 · 34th percentile

Published by the GitHub Advisory Database at 30 Aug 2021, 16:22 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
yourls/yourlsPackagist<=1.8.1No fixed version yet
Identifiers
GHSA-r6g8-jmj9-g945 · CVE-2021-3734 · PKSA-ds9p-gn9y-hv4j
Weakness (CWE)
CWE-352 · CWE-1021
Tags
Published
30 Aug 2021
Updated
8 Nov 2023

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

The yourls/yourls package, versions 1.8.1 and earlier, is affected by an improper restriction of rendered UI layers or frames, which is a clickjacking-type weakness. The source gives few details on how an attacker would trigger it or what exact impact follows from it. No fixed version is listed.

Written 5 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
6.5 Medium 3.0 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N CNA (@huntrdev)
  • CISA KEV Not listed.
  • EPSS 0.0040, the 34th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:33 UTC First seen by agentprime
  2. 31 Oct 2026, 14:33 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.