CVE-2023-2877Formidable Forms Missing Authorization
The Formidable Forms WordPress plugin before 6.3.1 does not adequately authorize the user or validate the plugin URL in its functionality for installing add-ons.
Published Jun 27, 2023 · Updated Dec 3, 2024 · Also known as WORDFENCE-d9f060bd-029a-462e-b308-8366e82be383, d9f060bd-029a-462e-b308-8366e82be383
Key Facts
Patch immediately- CVE-2023-2877 is a high-severity vulnerability (CVSS 8.8 v3.1) affecting Formidable Forms (Strategy11), formidable (wordpress-plugin).
- It is exploited in the wild, listed in Industry KEV feed since Jan 10, 2023. A public exploit is reported by tracking sources, but no code link is listed yet.
- EPSS estimates a 22% probability of exploitation in the next 30 days.
- Fixed versions are available, including formidable 6.3.1, Formidable Forms 6.3.1.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
Scores
CVSS v3.1
8.8
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
22%
Higher than 97.6% of all scored CVEs
Exploit maturity
Exploited (KEV)
ATLAS score
49/100
Publication score, see How it works
Exploitation Verdict
KEV listed
Jan 10, 2023
-168 days after publication
Federal due date
None
No federal due date
Ransomware use
Not reported
Attributed actors
None named
Exploit & Defence Guidance
Exploit maturity
Exploited (KEV)
Public exploit code
0
Proof-of-concept links
In-the-wild evidence
2
Reports of active use
Description
The Formidable Forms WordPress plugin before 6.3.1 does not adequately authorize the user or validate the plugin URL in its functionality for installing add-ons. This allows a user with a role as low as Subscriber to install and activate arbitrary plugins of arbitrary versions from the WordPress.org plugin repository onto the site, leading to Remote Code Execution.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| Industry KEV feed | Jan 10, 2023 | n/a | Not reported |
Affected Products
3 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Formidable FormsStrategy11 | See advisory | 6.3.1 |
| formidablewordpress-plugin | See advisory | 6.3.1 |
Patched Releases
formidable
6.3.1
Formidable Forms
6.3.1
Timeline
Added to Industry KEV feed
Jan 10, 2023
Publicly disclosed
Jun 27, 2023
Last updated
Dec 3, 2024
Weakness Type
- CWE-862 Missing Authorization
FAQ
Common Questions.
The Formidable Forms WordPress plugin before 6.3.1 does not adequately authorize the user or validate the plugin URL in its functionality for installing add-ons.
Affected: Formidable Forms (Strategy11); formidable (wordpress-plugin). The full list is in the CVE brief.
It is exploited in the wild, listed in Industry KEV feed since Jan 10, 2023.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
A public exploit is reported by tracking sources, but no code link is listed yet.
Fixed versions are available, including formidable 6.3.1, Formidable Forms 6.3.1.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
Is CVE-2023-2877 On Your Attack Surface?
Brandefense matches it against the products discovered on your perimeter and opens a finding the day a CVE like this is listed.
Request A Demo