high Known exploitedREV. 01
CVE-2026-119977WordPress Core — Upgrade Window Race Condition RCE
During a full-package core upgrade, WordPress Core 4.7 through 7.1.3 stages files at predictable, web-accessible paths. An unauthenticated attacker who strikes in that upgrade window can run code on the server.
Read the risk
THE VITAL STATS- CVSS score
- 8.1/ 10 CVSS v3.1
- EPSS probability
- 1.0% Likelihood of exploitation
- Attack complexity
- High Conditions needed to exploit
- Known exploited
- Yes — CISA KEV
- CVE published
- 2026-10-31
- Added to KEV
- 2026-11-03
- CISA due date
- 2026-11-06
- Exploit published
- Not recorded
- Confidence
- high
- Kill chain
- initial access
- MITRE ATT&CK
- —
- Severity
- high
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Attacker needsWeb access to the site while a full-package core upgrade is running.
Behind the card
5 REFERENCES- 01CVE recordNVD recordnvd.nist.gov
- 02CISACISA Known Exploited Vulnerabilities catalogcisa.gov
- 03Vendor advisorycore.trac.wordpress.orgcore.trac.wordpress.org
- 04Vendor advisorycore.trac.wordpress.orgcore.trac.wordpress.org
- 05Writeupwordfence.comwordfence.com
Field-level provenanceTRACE THE SOURCES +
Which source supports each field, when it was retrieved, and who extracted it.
| Fields | Source | Retrieved | Extractor | Confidence |
|---|---|---|---|---|
| cvss, exploitation.attack_complexity, exploitation.exploit_available, published_at, references | nvd.nist.gov | 2026-11-05 | scrty-crds-pipeline/0.1 | high |
| exploitation.known_exploited, exploitation.kev_added, exploitation.kev_due | cisa.gov | 2026-11-05 | scrty-crds-pipeline/0.1 | high |
| epss | api.first.org | 2026-11-05 | scrty-crds-pipeline/0.1 | high |
| title, subtitle, summary, severity, remediation, mitre_attack, kill_chain, recommended_action, confidence, tags, exploitation.prerequisites | nvd.nist.gov | 2026-11-05 | claude-code | high |
Printing history
THE RECORD- r1Initial base card
History unavailable — this build has no Git history for the card file.