CVE-2026-1639

CVE-2026-1639 is a medium-severity vulnerability with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-89.

Key facts

Description

The Taskbuilder – WordPress Project Management & Task Management plugin for WordPress is vulnerable to time-based blind SQL Injection via the 'order' and 'sort_by' parameters in all versions up to, and including, 5.0.2 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for authenticated attackers, with subscriber-level access and above, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.

Frequently asked questions

What is CVE-2026-1639?
The Taskbuilder – WordPress Project Management & Task Management plugin for WordPress is vulnerable to time-based blind SQL Injection via the 'order' and 'sort_by' parameters in all versions up to, and including, 5.0.2 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for authenticated attackers, with subscriber-level access and above, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.
How severe is CVE-2026-1639?
CVE-2026-1639 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2026-1639 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-1639?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-1639 have an EU (EUVD) identifier?
Yes. CVE-2026-1639 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-8058.
When was CVE-2026-1639 published?
CVE-2026-1639 was published on 2026-02-18 and last updated on 2026-06-17.

References

Other CWE-89 (SQL Injection) vulnerabilities

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