How severe is CVE-2014-2684?

CVE-2014-2684 has a CVSS 2.0 base score of 6.4, rated medium severity.

Is CVE-2014-2684 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2014-2684?

CVE-2014-2684 primarily affects Zend Zendopenid. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2014-2684?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2014-2684 published?

CVE-2014-2684 was published on 2014-11-16 and last updated on 2026-06-17.

CVE-2014-2684

CVE-2014-2684 is a medium-severity vulnerability in Zend Zendopenid with a CVSS 2.0 base score of 6.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-264.

Key facts

Severity: Medium (CVSS 2.0 base score 6.4)
EPSS exploit prediction: 2% (73rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-264
Affected product: Zend Zendopenid
Published: 2014-11-16
Last modified: 2026-06-17

Description

The GenericConsumer class in the Consumer component in ZendOpenId before 2.0.2 and the Zend_OpenId_Consumer class in Zend Framework 1 before 1.12.4 does not verify that the openid_op_endpoint value identifies the same Identity Provider as the provider used in the association handle, which allows remote attackers to bypass authentication and spoof arbitrary OpenID identities by using a malicious OpenID Provider that generates OpenID tokens with arbitrary identifier and claimed_id values.

Frequently asked questions

What is CVE-2014-2684?: The GenericConsumer class in the Consumer component in ZendOpenId before 2.0.2 and the Zend_OpenId_Consumer class in Zend Framework 1 before 1.12.4 does not verify that the openid_op_endpoint value identifies the same Identity Provider as the provider used in the association handle, which allows remote attackers to bypass authentication and spoof arbitrary OpenID identities by using a malicious OpenID Provider that generates OpenID tokens with arbitrary identifier and claimed_id values.
How severe is CVE-2014-2684?: CVE-2014-2684 has a CVSS 2.0 base score of 6.4, rated medium severity.
Is CVE-2014-2684 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2014-2684?: CVE-2014-2684 primarily affects Zend Zendopenid. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2014-2684?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2014-2684 published?: CVE-2014-2684 was published on 2014-11-16 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:zend:zendopenid:*:*:*:*:*:*:*:*
cpe:2.3:a:zend:zend_framework:*:*:*:*:*:*:*:*

More vulnerabilities in Zend Zendopenid

CVE-2014-2685 — High (CVSS 7.5): The GenericConsumer class in the Consumer component in ZendOpenId before 2.0.2 and the Zend_OpenId_Consumer class in…
CVE-2014-2682 — Medium (CVSS 6.8): Zend Framework 1 (ZF1) before 1.12.4, Zend Framework 2 before 2.1.6 and 2.2.x before 2.2.6, ZendOpenId, ZendRest,…
CVE-2014-2681 — Medium (CVSS 6.4): Zend Framework 1 (ZF1) before 1.12.4, Zend Framework 2 before 2.1.6 and 2.2.x before 2.2.6, ZendOpenId, ZendRest,…
CVE-2014-2683 — Medium (CVSS 5.0): Zend Framework 1 (ZF1) before 1.12.4, Zend Framework 2 before 2.1.6 and 2.2.x before 2.2.6, ZendOpenId, ZendRest,…

All CVEs affecting Zend Zendopenid →

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