Taskbuilder < 5.0.8 - Reflected XSS via Shortcode
Priority MEDIUM 64CWE-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 · Low
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-79.
Summary
The Taskbuilder WordPress plugin before 5.0.8 does not properly sanitise a URL parameter before echoing it into inline JavaScript on a frontend page containing one of its shortcodes, leading to a Reflected Cross-Site Scripting vulnerability that can be triggered against any logged-in user.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00146 3rd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed Taskbuilder (Unknown): 5.0.8
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
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Unknown | Taskbuilder | before 5.0.8 | 5.0.8 | Patch available | CNA |
- Taskbuilder VendorUnknown Affected before 5.0.8 Fixed in 5.0.8 Patch available CNA
Remediation
- Fix · CNA Taskbuilder (Unknown) Fixed in 5.0.8
Timeline
- 2026-10-02 Threatist record created from CVE-2026-9570
- 2026-10-03 Alias added: GHSA-jf67-82h5-mx67
References
Sources
- CVE-2026-9570 · CVE Program
- CVE-2026-9570 · NVD
- FIRST EPSS
- GHSA-jf67-82h5-mx67 · 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