CVE-2023-1478: incsub hummingbird Path Traversal
CVSS: 9.8v3.1CriticalModified
Published 10-04-2023Last modified 11-02-2025
Vulnerability summary
CVE-2023-1478 is a critical (CVSS 9.8) Path Traversal vulnerability in incsub hummingbird. EPSS estimates a 1.12% chance of exploitation in the next 30 days, higher than 65.6% of scored vulnerabilities. 1 public exploit is recorded. Fixed in 3.4.2.
CVSS score
9.8/10
010
Critical · v3.1 (CVE.org)EPSS score
1.12%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference
Timeline
- 10-04-2023PublishedVulnerability first disclosed.
- 11-02-2025Last modifiedVulnerability information updated.
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.
CVSS metrics
3 scores · 3 sources · 1 versionCritical 9.8Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HSources3 sources · 5.3–9.8
- NVDNIST9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- wordfenceSource5.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:NDiffers
EPSS trend
Probability
1.12%
Chance of exploitation in the next 30 days
Percentile
66%
Versus all other CVEs
30-day change
0.00 pp
From 1.12% on 19-09-2026
19-09-202619-10-2026
EPSS score1.12%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (wpscan.com)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Incsub1 product
- hummingbird< 3.4.2
Unknown1 product
- hummingbird< 3.4.2
Wordpress1 product
- hummingbird-performance≤ 3.4.1 (fixed in 3.4.2)
3 vendors · 3 products
References
2 links- wpscan.com/vulnerability/512a9ba4-01c0-4614-a991-efdc7fe51abeExploitVDB EntryTechnical DescriptionThird Party Advisory