CVE-2023-1478 | BDVDB-2026-199632 Detail

Hummingbird

Description#

The Hummingbird WordPress plugin before 3.4.2 does not validate the generated file path for page cache files before writing them, leading to a path traversal vulnerability in the page cache module.

Impact#

Per CVSS v3.1: confidentiality impact high, integrity impact high, availability impact high. Attack vector: network.

Weaknesses#

CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

References#

https://wpscan.com/vulnerability/512a9ba4-01c0-4614-a991-efdc7fe51abe

Exploit#

https://wpscan.com/vulnerability/512a9ba4-01c0-4614-a991-efdc7fe51abe

History#

Version 12023-04-10Record published in the CVE List.
Version 22025-02-11Most recent update recorded in the CVE List.

Published

Published: 2023-04-10
Last modified: 2025-02-11

Vendor information

Vendor: Not stated
Product: Hummingbird

Score

9.8 Critical

EPSS

1.1%, Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 66.4.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Path Traversal

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
< 3.4.2
Fixed
3.4.2

Scoring System

CVSS v4.0

Not available

CVSS v3.1

9.8 Critical

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

Metric breakdown
Attack Vector	Network
Attack Complexity	Low
Privileges Required	None
User Interaction	None
Scope	Unchanged
Confidentiality	High
Integrity	High
Availability	High

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).