WordPress Hummingbird plugin <= 3.7.3 - Broken Access Control vulnerability
Missing Authorization vulnerability in WPMU DEV - Your All-in-One WordPress Platform Hummingbird hummingbird-performance.This issue affects Hummingbird: from n/a through <= 3.7.3.
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for the hundreds of thousands of vulnerabilities in the database; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for help- Published
- Jun 9, 2024
- Updated
- Jun 17, 2026
- EPSS
- 0.3% · 19th percentile
- CWE
- CWE-862
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Report tools
Action score
21
Monitor
Low priority for now.
- CVSS
- 21 / 40 · 5.3 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.3%
CISA SSVC decision
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
Vulnrichment: CISA's decision-tree inputs.
CNA vs NVD score
- NVD
- 5.3
- CNA · Patchstack
- 4.3
- 1.0 point gap
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| incsub | hummingbird | cpe:2.3:a:incsub:hummingbird |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- incsub hummingbirdbefore 3.7.4
Versions reported by the vendor
Affected version ranges reported by the assigning authority (Patchstack). Independent of NVD's CPE analysis and usually ahead of it.
WPMU DEV - Your All-in-One WordPress Platform Hummingbird
- up to and including 3.7.3affectedfixed in 3.7.4
Same product
incsub: all recordsOther highest-scoring records for the same primary product.
- CVE-2023-1478Hummingbird < 3.4.2 - Unauthenticated Path Traversal39Monitor
- CVE-2024-43118WordPress Hummingbird plugin <= 3.9.1 - Broken Access Control vulnerability35Monitor
- CVE-2022-0994Hummingbird < 3.3.2 - Admin+ Stored Cross-Site Scripting20Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| WPMU DEV - Your All-in-One WordPress Platform Hummingbird | 3.7.4 | Vendor (CNA) |
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
- Peng ZhouPatchstack Bug Bounty Programfinder
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
- CVE-2024-43118145 days apartWordPress Hummingbird plugin <= 3.9.1 - Broken Access Control vulnerability35Monitor
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- Anyone who can reach it over the internet can trigger it.
- No account or password is required.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- none
- Integrity
- low · data or configuration can be modified
- Availability
- none
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- None
- Integrity impact
- Low
- Availability impact
- None
Weakness class (CWE)
CWE-862 · Missing AuthorizationCVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Change log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
- patchstack.com/database/Wordpress/Plugin/hummingbird-performance/vulnerability/wordpress-hummingbird-plugin-3-7-3-broken-access-control-vulnerability?_s_id=cve
- patchstack.com/database/vulnerability/hummingbird-performance/wordpress-hummingbird-plugin-3-7-3-broken-access-control-vulnerability?_s_id=cve
Vendor advisories and official records. Exploit/PoC links are deliberately left out.