CVE-2015-7816

Exp

The DisplayTopKeywords function in plugins/Referrers/Controller.php in Piwik before 2.15.0 allows remote attackers to conduct PHP object injection attacks, conduct Server-Side Request Forgery (SSRF) attacks, and execute arbitrary PHP code via a crafted HTTP header.

Published: 2015-11-16 Last update: 2026-05-06 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2015-7816 is rated High Exploit Risk (64.6/100): CVSS High severity, with medium exploitation likelihood (EPSS 0.38%). 3 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2015-7816

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2015-7816

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-03-30 0.52% 0.38% -0.14%
2 2025-03-29 0.38% 0.52% +0.14%
3 2025-03-17 — 0.38% —

Full EPSS history (6 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2015-7816

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 2.0 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 6.4 [email protected]

Weakness enumeration for CVE-2015-7816

OS Trackers for CVE-2015-7816

vendor priority summary link
debian unimportant CVE-2015-7816 unimportant priority: Debian including 1 source packages (matomo), 2 status rows across 2 suites (sid, trixie): resolved 2. https://security-tracker.debian.org/tracker/CVE-2015-7816

NVD evaluator notes for CVE-2015-7816

Comment: <a href="https://cwe.mitre.org/data/definitions/918.html">CWE-918: Server-Side Request Forgery (SSRF)</a>

Affected software / configurations for CVE-2015-7816

Vendor Product Version Raw CPE
matomo matomo <= 2.14.3 cpe:2.3:a:matomo:matomo:*:*:*:*:*:*:*:*

References for CVE-2015-7816

cvelogic Threat Intelligence