Cyber Resilience

CVE-2021-30134

MediumPublic PoC

Published: 26 December 2022

Published
26 December 2022
Modified
14 April 2025
KEV Added
—
Patch
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CVSS Score v3.1 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS Score 0.0180 83.2th percentile
Risk Priority 13 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-30134 is a medium-severity Cross-site Scripting (CWE-79) vulnerability in Php Curl Class Project Php Curl Class. Its CVSS base score is 6.1 (Medium).

Operationally, ranked in the top 16.8% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability details

php-mod/curl (a wrapper of the PHP cURL extension) before 2.3.2 allows XSS via the post_file_path_upload.php key parameter and the POST data to post_multidimensional.php.

CWE(s)
CWE-79

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

php curl class project
php curl class
≤ 2.3.2
ht slider range for amazon affiliates project
ht slider range for amazon affiliates
≤ 1.1.6
qiwi
woo-qiwi-payment-gateway
≤ 0.0.9
teamleade
teamleader crm forms
≤ 2.1.0
ptwooplugins
invoicing with invoicexpress for woocommerce
≤ 3.0.3
shopello api project
shopello api
≤ 2.9.0

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

CA-8 Penetration Testing
addresses: CWE-79

Penetration testing submits XSS payloads to web applications, detecting cross-site scripting flaws for subsequent remediation.

SI-10 Information Input Validation
addresses: CWE-79

Validates web inputs to reject script-related content that could produce XSS.

SI-15 Information Output Filtering
addresses: CWE-79

Output validation against expected content can reject or sanitize script content in generated web pages, reducing XSS exploitability.

References