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CVE-2026-73529

Plainpad Missing Rate Limiting via POST /v1/sessions

Published: Aug 18, 2026Updated: Aug 18, 2026 Sources: CVE List NVDCWE-307
5.3MEDIUM
NVD MITRE
EPSS Score
0.3%
Top 78.2%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available
Self-Check
Not available

Description

Plainpad through 1.1.1, fixed in commit d3823fc, contains a missing rate limiting vulnerability that allows unauthenticated attackers to send unbounded login requests to the POST /v1/sessions endpoint due to dead code in App\Http\Kernel.php that is never instantiated under the Laravel 11+ skeleton, leaving the API throttle configuration unattached to any route. Attackers can exploit this by sending unlimited credential attempts with no lockout or CAPTCHA enforcement, and additionally trigger CPU exhaustion by forcing repeated bcrypt comparisons on each request.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:NA:L
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:LAvailability
Low
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Weaknesses

CWE-307

Affected Products

alextselegidis
individual-devaka alextselegidis/easyappointments, easy!appointments
plainpadOn-prem
Web & CMS Plugins / wordpress-plugin

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique
Credential Access
View detailed technique mapping

References

https://github.com/alextselegidis/plainpad/commit/d3823fc595b5d8f842a6fd7dfe49b7852a10fdac
github.com
https://www.vulncheck.com/advisories/plainpad-missing-rate-limiting-via-post-v1-sessions
vulncheck.com

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