CISA Confirms Hackers Exploiting WordPress Core Flaw During Software Upgrades
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The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has added a security flaw in WordPress Core to the Known Exploited Vulnerabilities (KEV) catalog, citing evidence of active exploitation. The high-severity vulnerability, tracked as CVE-2026-119977 (CVSS score: 8.1), is a case of Time-of-check Time-of-use (TOCTOU) race condition that could be exploited to achieve arbitrary code
Summary from The Hacker News.
Explained
The technology and terms in this story. Learn more
- ConceptKEV · Known Exploited Vulnerabilities catalogCISA's list of vulnerabilities with evidence of real-world exploitation.
- ConceptCVSS · Common Vulnerability Scoring SystemA 0–10 score for how severe a vulnerability is in theory.
- ConceptCISA · Cybersecurity and Infrastructure Security AgencyThe US government's cybersecurity agency, which issues alerts and runs the KEV catalog.
- ConceptExploitCode or a technique that turns a software flaw into something an attacker can actually use.
Why it was possible
The weaknesses behind this story's CVEs, from each CVE Record.
Vulnerabilities in this story
Severity and exploitation facts from NVD, FIRST, and CISA.
Related coverage
Other sources covering the same vulnerabilities or event.
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