CVE-2015-1786

Cross-site request forgery (CSRF) vulnerability in Zend/Validator/Csrf in Zend Framework 2.3.x before 2.3.6 via null or malformed token identifiers.

Published: 2017-06-08 Last update: 2026-05-13 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2015-1786 is rated Moderate Risk (44.5/100): CVSS High severity, with low exploitation likelihood (EPSS 0.07%). Review affected assets and schedule remediation.

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

Exploit prediction scoring system (EPSS) score for CVE-2015-1786

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 2023-03-07 0.89% 0.07% -0.81%
2 2022-02-04 — 0.89% —

Full EPSS history (2 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2015-1786

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.8 3.0 HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.8 5.9 [email protected]
6.8 2.0 MEDIUM
AV:N/AC:M/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:M)
Exploitation needs some favorable conditions, but not exceptional ones.
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.
 8.6 6.4 [email protected]

Weakness enumeration for CVE-2015-1786

GitHub Security Advisory for CVE-2015-1786

GHSA-gwwq-54qp-9pgp · Severity: high · Ecosystem: composer — Zend Framework CSRF Vulnerability

OS Trackers for CVE-2015-1786

vendor priority summary link
ubuntu medium CVE-2015-1786 medium priority: Ubuntu including 1 source packages (zendframework), 5 status rows across 5 suites (lucid, precise, trusty, upstream, utopic): DNE 3, ignored 1, released 1. https://ubuntu.com/security/CVE-2015-1786

Affected software / configurations for CVE-2015-1786

Vendor Product Version Raw CPE
zend zend_framework 2.3.0 cpe:2.3:a:zend:zend_framework:2.3.0:*:*:*:*:*:*:*
zend zend_framework 2.3.1 cpe:2.3:a:zend:zend_framework:2.3.1:*:*:*:*:*:*:*
zend zend_framework 2.3.2 cpe:2.3:a:zend:zend_framework:2.3.2:*:*:*:*:*:*:*
zend zend_framework 2.3.3 cpe:2.3:a:zend:zend_framework:2.3.3:*:*:*:*:*:*:*
zend zend_framework 2.3.4 cpe:2.3:a:zend:zend_framework:2.3.4:*:*:*:*:*:*:*
zend zend_framework 2.3.5 cpe:2.3:a:zend:zend_framework:2.3.5:*:*:*:*:*:*:*

References for CVE-2015-1786

URL Tags
https://bugzilla.redhat.com/show_bug.cgi?id=1207781 Issue Tracking Third Party Advisory VDB Entry
https://framework.zend.com/changelog/2.3.6 Release Notes Vendor Advisory
cvelogic Threat Intelligence