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.
CVE-2026-9570
HIGHPre-NVD 7.17.1—Trending — 3 sources updated this week
EchelonGraph scoreHIGH confidence
Score 7.1 from GitHub Security Advisory (severity: HIGH) published 2026-06-17. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 7.1; sources differ by 0.0.
Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
7.1
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.1Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.1
- EG Score
- 7.1(high)
- EPSS
- 4.2%
- KEV
- Not listed
Published
June 17, 2026
Last Modified
June 17, 2026
Advisory Details (1)
Auto-updated Jun 19, 2026🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available
Taskbuilder < 5.0.8 – Reflected XSS via Shortcode | CVE 2026-9570 | Plugin Vulnerabilities
https://wpscan.com/vulnerability/e9abd7eb-39f1-49d7-a70e-b07cf3680399/Vendor Advisories for CVE-2026-9570(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Frequently asked(5)
What is CVE-2026-9570?
CVE-2026-9570 is a high vulnerability published on June 17, 2026. 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.
When was CVE-2026-9570 disclosed?
CVE-2026-9570 was first published in the National Vulnerability Database on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-9570 actively exploited?
CVE-2026-9570 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 4.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-9570?
CVE-2026-9570 has a CVSS v3.1 base score of 7.1 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-9570?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-9570, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-9570
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