Read the docs
TI-2020-10751 Aliases CVE-2020-13756GHSA-phrq-v4q2-hmq6

Sabberworm PHP CSS Parser before 8.3.1 calls eval on uncontrolled data, possibly leading…

Priority HIGH 73CWE-94Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-94.

Summary

Sabberworm PHP CSS Parser before 8.3.1 calls eval on uncontrolled data, possibly leading to remote code execution if the function allSelectors() or getSelectorsBySpecificity() is called with input from an attacker.

Why it matters now

EPSS 0.49797 98th percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD
Fix Fixed sabberworm/php-css-parser (Packagist): 8.3.1, 8.2.1, 8.1.1 +10

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
—sabberworm/php-css-parser (Packagist)8.3.0 to before 8.3.18.3.1Patch availableGHSA-phrq-v4q2-hmq6
—sabberworm/php-css-parser (Packagist)8.2.0 to before 8.2.18.2.1Patch availableGHSA-phrq-v4q2-hmq6
—sabberworm/php-css-parser (Packagist)8.1.0 to before 8.1.18.1.1Patch availableGHSA-phrq-v4q2-hmq6
—sabberworm/php-css-parser (Packagist)8.0.0 to before 8.0.18.0.1Patch availableGHSA-phrq-v4q2-hmq6
—sabberworm/php-css-parser (Packagist)7.0.0 to before 7.0.47.0.4Patch availableGHSA-phrq-v4q2-hmq6
—sabberworm/php-css-parser (Packagist)6.0.0 to before 6.0.26.0.2Patch availableGHSA-phrq-v4q2-hmq6
—sabberworm/php-css-parser (Packagist)5.2.0 to before 5.2.15.2.1Patch availableGHSA-phrq-v4q2-hmq6
—sabberworm/php-css-parser (Packagist)5.1.0 to before 5.1.35.1.3Patch availableGHSA-phrq-v4q2-hmq6
—sabberworm/php-css-parser (Packagist)5.0.0 to before 5.0.95.0.9Patch availableGHSA-phrq-v4q2-hmq6
—sabberworm/php-css-parser (Packagist)4.0.0 to before 4.0.14.0.1Patch availableGHSA-phrq-v4q2-hmq6
—sabberworm/php-css-parser (Packagist)3.0.0 to before 3.0.13.0.1Patch availableGHSA-phrq-v4q2-hmq6
—sabberworm/php-css-parser (Packagist)2.0.0 to before 2.0.12.0.1Patch availableGHSA-phrq-v4q2-hmq6
—sabberworm/php-css-parser (Packagist)1.0.0 to before 1.0.11.0.1Patch availableGHSA-phrq-v4q2-hmq6
  • — Vendor— Affected all versions Fixed in — No fix listed CNA
  • sabberworm/php-css-parser (Packagist) Vendor— Affected 8.3.0 to before 8.3.1 Fixed in 8.3.1 Patch available GHSA-phrq-v4q2-hmq6
  • sabberworm/php-css-parser (Packagist) Vendor— Affected 8.2.0 to before 8.2.1 Fixed in 8.2.1 Patch available GHSA-phrq-v4q2-hmq6
  • sabberworm/php-css-parser (Packagist) Vendor— Affected 8.1.0 to before 8.1.1 Fixed in 8.1.1 Patch available GHSA-phrq-v4q2-hmq6
  • sabberworm/php-css-parser (Packagist) Vendor— Affected 8.0.0 to before 8.0.1 Fixed in 8.0.1 Patch available GHSA-phrq-v4q2-hmq6
  • sabberworm/php-css-parser (Packagist) Vendor— Affected 7.0.0 to before 7.0.4 Fixed in 7.0.4 Patch available GHSA-phrq-v4q2-hmq6
  • sabberworm/php-css-parser (Packagist) Vendor— Affected 6.0.0 to before 6.0.2 Fixed in 6.0.2 Patch available GHSA-phrq-v4q2-hmq6
  • sabberworm/php-css-parser (Packagist) Vendor— Affected 5.2.0 to before 5.2.1 Fixed in 5.2.1 Patch available GHSA-phrq-v4q2-hmq6
  • sabberworm/php-css-parser (Packagist) Vendor— Affected 5.1.0 to before 5.1.3 Fixed in 5.1.3 Patch available GHSA-phrq-v4q2-hmq6
  • sabberworm/php-css-parser (Packagist) Vendor— Affected 5.0.0 to before 5.0.9 Fixed in 5.0.9 Patch available GHSA-phrq-v4q2-hmq6
  • sabberworm/php-css-parser (Packagist) Vendor— Affected 4.0.0 to before 4.0.1 Fixed in 4.0.1 Patch available GHSA-phrq-v4q2-hmq6
  • sabberworm/php-css-parser (Packagist) Vendor— Affected 3.0.0 to before 3.0.1 Fixed in 3.0.1 Patch available GHSA-phrq-v4q2-hmq6
  • sabberworm/php-css-parser (Packagist) Vendor— Affected 2.0.0 to before 2.0.1 Fixed in 2.0.1 Patch available GHSA-phrq-v4q2-hmq6
  • sabberworm/php-css-parser (Packagist) Vendor— Affected 1.0.0 to before 1.0.1 Fixed in 1.0.1 Patch available GHSA-phrq-v4q2-hmq6

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:sabberworm:php_css_parser:*:*:*:*:*:*:*:*before 8.3.1VulnerableSabberworm
  • cpe:2.3:a:sabberworm:php_css_parser:*:*:*:*:*:*:*:* Versions before 8.3.1 Vulnerable ·Sabberworm

Remediation

  • Fix · GHSA-phrq-v4q2-hmq6 sabberworm/php-css-parser (Packagist) Fixed in 8.3.1 Advisory →
  • Fix · GHSA-phrq-v4q2-hmq6 sabberworm/php-css-parser (Packagist) Fixed in 8.2.1 Advisory →
  • Fix · GHSA-phrq-v4q2-hmq6 sabberworm/php-css-parser (Packagist) Fixed in 8.1.1 Advisory →
  • Fix · GHSA-phrq-v4q2-hmq6 sabberworm/php-css-parser (Packagist) Fixed in 8.0.1 Advisory →
  • Fix · GHSA-phrq-v4q2-hmq6 sabberworm/php-css-parser (Packagist) Fixed in 7.0.4 Advisory →
  • Fix · GHSA-phrq-v4q2-hmq6 sabberworm/php-css-parser (Packagist) Fixed in 6.0.2 Advisory →
  • Fix · GHSA-phrq-v4q2-hmq6 sabberworm/php-css-parser (Packagist) Fixed in 5.2.1 Advisory →
  • Fix · GHSA-phrq-v4q2-hmq6 sabberworm/php-css-parser (Packagist) Fixed in 5.1.3 Advisory →
  • Fix · GHSA-phrq-v4q2-hmq6 sabberworm/php-css-parser (Packagist) Fixed in 5.0.9 Advisory →
  • Fix · GHSA-phrq-v4q2-hmq6 sabberworm/php-css-parser (Packagist) Fixed in 4.0.1 Advisory →
  • Fix · GHSA-phrq-v4q2-hmq6 sabberworm/php-css-parser (Packagist) Fixed in 3.0.1 Advisory →
  • Fix · GHSA-phrq-v4q2-hmq6 sabberworm/php-css-parser (Packagist) Fixed in 2.0.1 Advisory →
  • Fix · GHSA-phrq-v4q2-hmq6 sabberworm/php-css-parser (Packagist) Fixed in 1.0.1 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-2020-13756
  2. 2026-10-03 Alias added: GHSA-phrq-v4q2-hmq6

References

Exploit 2

Patch 1

Advisory 2

Other 3

Sources

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