Reflected cross-site scripting in WordPress UpSolution Core plugin
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · Low
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
UpSolution Core, a WordPress plugin, is affected through version 8.44. Input is not neutralized when web pages are generated, which allows reflected cross-site scripting (CWE-79). A remote attacker with no privileges can make a user who opens a crafted page run script in the site's context, with low confidentiality, integrity and availability impact.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Description from the CNA
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in UpSolution UpSolution Core us-core allows Reflected XSS.This issue affects UpSolution Core: from n/a through 8.44.
Why it matters now
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
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| UpSolution | UpSolution Core | up to 8.44 | — | No fix listed | CNA |
- UpSolution Core VendorUpSolution Affected up to 8.44 Fixed in — No fix listed CNA
Remediation
The sources list no fixed version for UpSolution Core.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Timeline
- 2026-10-09 Threatist record created from CVE-2026-94166
- 2026-10-09 Alias added: GHSA-p68x-hxrq-4p9m
- 2026-10-10 CISA SSVC decision points changed
- 2026-10-10 Priority changed: MEDIUM → LOW
More UpSolution vulnerabilities
- TI-2026-69942 SQL injection in WordPress UpSolution Core plugin CVSS 3.1HIGH 8.5
- TI-2023-27796 WordPress UpSolution Core Plugin <= 8.17.4 is vulnerable to Cross Site Scripting (XSS) CVSS 3.1HIGH 7.1
- TI-2026-20168 WordPress UpSolution Core plugin <= 8.41 - Reflected Cross Site Scripting (XSS) vulnerability CVSS 3.1HIGH 7.1
Sources
- CVE-2026-94166 · CVE Program
- CVE-2026-94166 · NVD
- FIRST EPSS
- GHSA-p68x-hxrq-4p9m · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences