Vulnerability report

Exploitation Attempts Observed Confirmed Confidence In CISA KEV

CVE-2026-119977

WordPress Remote Code Execution

WordPress · 4.7.0 to <= 4.7.38

Watch CVE-2026-119977 Browse KEV feed
Severity
CVSS 8.1 · High
Confidence
Confirmed
Exploit status
Exploitation Attempts Observed in the Wild
EPSS
0.6%
First observed
30 Oct 2026
Last observed
30 Oct 2026

Decision summary

What security teams need to know first

Direct answers before the deeper technical record.

What it is

CVE-2026-119977 is an unauthenticated vulnerability affecting WordPress. WordPress Core is vulnerable to Remote Code Execution in versions 4.7 through 7.1.3. This is due to predictable, web-accessible staging paths...

Have exploitation attempts been observed?

Yes. Previdian sensors have observed 3 exploitation attempts, 1 unique attacker IP, and 1 country targeting CVE-2026-119977. First observed Oct 30, 2026. Listed in CISA KEV. Also reported by third-party sources. Confidence is confirmed.

Who is affected?

WordPress 4.7.0 to <= 4.7.38.

What should we do?

Patch immediately, validate internet-facing exposure, and monitor for matching requests.

Overview

WordPress Core is vulnerable to Remote Code Execution in versions 4.7 through 7.1.3

WordPress Core is vulnerable to Remote Code Execution in versions 4.7 through 7.1.3. This is due to predictable, web-accessible staging paths used during full-package core upgrades.

This makes it possible for unauthenticated attackers to execute code on the server during the upgrade window.

WordPress Foundation Affected
WordPress
Through 4.7.38 Through 4.8.33 Through 4.9.34 Through 5.0.30 Through 5.1.27 Through 5.2.29 Through 5.3.26 Through 5.4.24 Through 5.5.23 Through 5.6.22 Through 5.7.20 Through 5.8.18 Through 5.9.19 Through 6.0.17 Through 6.1.15 Through 6.2.14 Through 6.3.13 Through 6.4.13 Through 6.5.13 Through 6.6.10 Through 6.7.10 Through 6.8.11 Through 6.9.10 Through 7.0.7 Through 7.1.3
Published
31 Oct 2026
Attempts Observed Since
30 Oct 2026
Attack vector
Remote
Complexity
High
Privileges
None
User interaction
None

Tags

wordpress cisa

CVE References

Exploitation evidence

Evidence of exploitation attempts

Third-party attestation and first-party sensor observation are shown separately so teams can judge the evidence chain.

Exploitation Attempts Observed in the Wild

Previdian sensor

Recorded 30 Oct 2026

Previdian sensors observed exploitation attempts targeting this vulnerability before a third-party report.

Exploitation Attempts Observed

Previdian sensor

First observed 30 Oct 2026

Previdian sensors observed exploitation attempts targeting this vulnerability.

Known exploited vulnerability sources

Per-source evidence links for KEV attestations are available through the Previdian Pro API.

Learn about Pro API access
Source Added
Wordfence First 2026-10-30 14:00 UTC
Previdian Sensors 2026-10-30 14:28 UTC
CISA 2026-11-03 20:40 UTC

Operational indicators for this CVE are listed under Detection.

Sensor telemetry

Previdian Sensor Observations

Previdian sensor observations are exploitation attempts targeting this vulnerability. They do not show that the target was vulnerable or that the attempt succeeded. The cards and chart show volume, unique attackers, and daily activity.

3

Attempts observed

1

Unique attacker IPs

1

Attacker countries

GB

1

Sensors observed

CVE-2026-119977 exploitation attempts over the last 7 days

Daily events observed by Previdian sensors

Updated 04 Nov 2026

0
3
0
0
0
0
0
29 Oct 30 Oct 31 Oct 1 Nov 2 Nov 3 Nov 4 Nov

First observed 30 Oct 2026 · Last observed 30 Oct 2026

Pro adds sensor region and window summaries. Enterprise adds raw IPs, paths, User-Agents, and payloads.

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Detection

Operational artifacts and observed signals

Make the evidence actionable in scanner, SOC, and edge-control workflows.

Observed signals

Request targets
User-Agents
Callback hosts
3
3
0

Request targets and User-Agents available in Pro. Callback host details available in Enterprise.

Scanner coverage

No scanner integrations recorded yet.

Virtual patch status

No Previdian virtual patch is currently available. Future rules ship for ModSecurity, Cloudflare, and AWS WAF.

Learn about virtual patches →

Attacker IP Indicators

Attacker IP indicators observed · available in Pro and Enterprise.

Sensor-derived attacker IP indicators are available to Pro and Enterprise accounts under Detection and through the Pro API.

Learn about Pro API access

Risk and context

Severity, weaknesses, and research context

CVSS v3.1

8.1 High

Potential damage if exploited. Separate from whether attackers are using it.

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

0.6%

Estimated chance of exploitation in the next 30 days. Previdian's warning comes from evidence, not this score.

Weaknesses

Time-of-check Time-of-use (TOCTOU) Race Condition CWE-367

Recent mention · Wordfence

WordPress 7.1.4 Patches Unauthenticated Upgrade-Window RCE; Exploitation Attempts Detected After Release

WordPress 7.1.4 was released on October 28, 2026. According to WordPress, it includes fixes for 22 security vulnerabilities. The most serious is an unauthenticated race condition in the Core update process that can lead to remote code execution. Threat actors are already...

Read full advisory

Timeline

From disclosure to observed exploitation attempts

  1. 20:40 UTC

    Added to CISA KEV

    Listed in the CISA Known Exploited Vulnerabilities catalog

  2. 11:06 UTC

    CVE ID assigned

    Previously tracked as VULN-2026-0005

  3. 20:20 UTC

    Added to the Previdian watchlist

    Pro and Enterprise Watch users had 3 days of early warning before CISA KEV.

  4. 05:33 UTC

    CVE published

    Vulnerability disclosed publicly

  5. 17:17 UTC

    CVE ID reserved

    Identifier reserved by the CNA

  6. 14:00 UTC

    Added to Previdian KEV Feed

    High-confidence, third-party report of exploitation attempts

  7. 05:46 UTC

    Indicator of compromise added

    Indicators of compromise recorded

  8. 05:46 UTC

    Observed by Previdian sensors

    Previdian sensors observed exploitation attempts targeting this vulnerability.

Pro API

Automate this intelligence

Confidence, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.

Start 14-day Pro trial Read API docs
  • Evidence confidence and provenance
  • First-party sensor telemetry
  • PoC and scanner references
  • Affected versions and enrichment
  • Automation-ready JSON delivery

GET /api/v2/pro/kevs/CVE-2026-119977

Sample API response 
{
  "cve_id": "CVE-2026-119977",
  "confidence": "Confirmed",
  "cvss_score": 8.1,
  "cvss_estimated": false,
  "epss_score": 0.006,
  "exploit_status": {
    "exploited_in_the_wild": true,
    "active_exploitation_observed": true
  },
  "sensor_telemetry": { "attempts": 3, "sensors": 1 }
}