Read the docs
TI-2026-82333 Aliases CVE-2026-116763GHSA-wgrw-7pq3-7r4q

Stored cross-site scripting in LiteSpeed Cache via HTML minifier

Priority LOW 24CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

The LiteSpeed Cache plugin for WordPress in all versions up to and including 7.9.1 does not sufficiently sanitize or escape the comment parameter (CWE-79). An unauthenticated attacker can store arbitrary web scripts that run when a user opens an affected page. This is only exploitable when the HTML Minify option is enabled and a companion plugin renders stored comment content into a raw-text context such as a JSON-LD script block on the same page.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

The LiteSpeed Cache plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'comment' parameter in all versions up to, and including, 7.9.1 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This vulnerability is only exploitable when the HTML Minify option (O_OPTM_HTML_MIN) is enabled and a companion plugin renders stored comment content into a raw-text context such as a JSON-LD script block on the same page.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00341 27th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
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
litespeedtechLiteSpeed Cacheup to 7.9.1—No fix listedCNA
  • LiteSpeed Cache Vendorlitespeedtech Affected up to 7.9.1 Fixed in — No fix listed CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:litespeedtech:litespeed_cache:*:*:*:*:*:*:*:*——litespeedtech
  • cpe:2.3:a:litespeedtech:litespeed_cache:*:*:*:*:*:*:*:* Versions — — ·litespeedtech

Remediation

The sources list no fixed version for LiteSpeed Cache.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Timeline

  1. 2026-10-29 Threatist record created from CVE-2026-116763
  2. 2026-10-29 CISA SSVC decision points changed
  3. 2026-10-29 Priority changed: MEDIUM → LOW
  4. 2026-10-29 Alias added: GHSA-wgrw-7pq3-7r4q

References

Other 7

  • TI-2026-35606 LiteSpeed User-End cPanel Plugin before 2.4.5 allows privilege escalation (possibly to… KEVCVSS 4.0CRITICAL 10.0
  • TI-2026-39296 LiteSpeed cPanel plugin before 2.4.8 (as distributed in LiteSpeed WHM PlugIn before… KEVCVSS 3.1HIGH 8.5
  • TI-2024-29589 WordPress LiteSpeed Cache plugin < 6.5.0.1 - Unauthenticated Account Takeover via Cookie Leak vulnerability CVSS 3.1CRITICAL 9.8
  • TI-2024-18601 WordPress LiteSpeed Cache plugin <= 6.3.0.1 - Unauthenticated Privilege Escalation vulnerability CVSS 3.1CRITICAL 9.8
  • TI-2022-00030 Authenticated Remote Code Execution in OpenLiteSpeed Web Server CVSS 3.1HIGH 8.8
  • TI-2026-83023 Client certificate bypass over HTTP/3 in OpenLiteSpeed CVSS 4.0HIGH 8.2
See all 46 →

Sources

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