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TI-2018-15813 Aliases CVE-2018-1000162GHSA-qgpv-86r3-87fh

Parsedown version prior to 1.7.0 contains a Cross Site Scripting (XSS) vulnerability in…

Priority LOW 30CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
Fixed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA and GitHub. Impact type from CWE-79.

Summary

Parsedown version prior to 1.7.0 contains a Cross Site Scripting (XSS) vulnerability in `setMarkupEscaped` for escaping HTML that can result in JavaScript code execution. This attack appears to be exploitable via specially crafted markdown that allows it to side step HTML escaping by breaking AST boundaries. This vulnerability appears to have been fixed in 1.7.0 and later.

Why it matters now

EPSS 0.01159 67th percentileScored 2026-11-07
Fix Fixed erusev/parsedown (Packagist): 1.7.0

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
—erusev/parsedown (Packagist)before 1.7.01.7.0Patch availableGHSA-qgpv-86r3-87fh
  • — Vendor— Affected all versions Fixed in — No fix listed CNA
  • erusev/parsedown (Packagist) Vendor— Affected before 1.7.0 Fixed in 1.7.0 Patch available GHSA-qgpv-86r3-87fh

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:parsedown:parsedown:*:*:*:*:*:*:*:*before 1.7.0VulnerableParsedown
  • cpe:2.3:a:parsedown:parsedown:*:*:*:*:*:*:*:* Versions before 1.7.0 Vulnerable ·Parsedown

Remediation

  • Fix · GHSA-qgpv-86r3-87fh erusev/parsedown (Packagist) Fixed in 1.7.0 Advisory →

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-1000162
  2. 2026-10-03 Alias added: GHSA-qgpv-86r3-87fh

References

Advisory 3

Other 2

  • TI-2019-08126 Parsedown before 1.7.2, when safe mode is used and HTML markup is disabled, might allow… CVSS 3.0HIGH 8.1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences