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Fencer Intel
high 7.1

CVE-2026-9570 json

Taskbuilder < 5.0.8 - Reflected XSS via Shortcode

published 4mo ago modified 4mo ago also EUVD-2026-37559

cvss
7.1
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.1%
EPSS 0.1% chance of exploitation in 30 days, percentile 3%
public exploits
0
none known

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.

Patch / fix

  • Unknown Taskbuilder 5.0.8

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CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
partial
Assessed
4mo ago

Exploit prediction

0.15% chance of exploitation in the next 30 days, higher than 3% of all scored CVEs (FIRST EPSS, 2026-11-11).

Exploits and checks

  • wpscan.com https://wpscan.com/vulnerability/e9abd7eb-39f1-49d7-a70e-b07cf3680399/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CISA ADP 3.1 7.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
CNA 3.1 7.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

Affected products

  • Unknown Taskbuilder

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation
Technology feeds

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.