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TI-2022-21618 Aliases CVE-2022-43984GHSA-6q49-35h6-rq2p

Browsershot 3.57.3 - Server Side XSS to LFR via HTML

Priority HIGH 69CWE-79Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and GitHub. Impact type from CWE-79.

Summary

Browsershot version 3.57.3 allows an external attacker to remotely obtain arbitrary local files. This is possible because the application does not validate that the JS content imported from an external source passed to the Browsershot::html method does not contain URLs that use the file:// protocol.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00676 52nd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed spatie/browsershot (Packagist): 3.57.4

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
—Browsershot3.57.3—No fix listedCNA
—spatie/browsershot (Packagist)before 3.57.43.57.4Patch availableGHSA-6q49-35h6-rq2p
  • Browsershot Vendor— Affected 3.57.3 Fixed in — No fix listed CNA
  • spatie/browsershot (Packagist) Vendor— Affected before 3.57.4 Fixed in 3.57.4 Patch available GHSA-6q49-35h6-rq2p

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:spatie:browsershot:3.57.3:*:*:*:*:*:*:*3.57.3Vulnerablespatie
  • cpe:2.3:a:spatie:browsershot:3.57.3:*:*:*:*:*:*:* Versions 3.57.3 Vulnerable ·spatie

Remediation

  • Fix · GHSA-6q49-35h6-rq2p spatie/browsershot (Packagist) Fixed in 3.57.4 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2022-43984
  2. 2026-10-03 Alias added: GHSA-6q49-35h6-rq2p
  3. 2026-10-23 EPSS moved to the 50th–90th percentile

References

Exploit 1

Advisory 1

Other 5

  • TI-2022-21617 Browsershot 3.57.2 - Server Side XSS to LFR via HTML CVSS 3.1HIGH 8.2
  • TI-2022-20098 Browsershot 3.57.2 - Server Side XSS to LFR via URL CVSS 3.1HIGH 8.2
  • TI-2020-06306 Arbitrary file read in spatie/browsershot CVSS 3.1MEDIUM 5.3

Sources

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