How severe is CVE-2017-11516?

CVE-2017-11516 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2017-11516 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-11516?

CVE-2017-11516 affects Yiiframework Yii. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-11516?

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

When was CVE-2017-11516 published?

CVE-2017-11516 was published on 2017-07-21 and last updated on 2026-06-17.

CVE-2017-11516

CVE-2017-11516 is a medium-severity vulnerability in Yiiframework Yii with a CVSS 3.x base score of 6.1. 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-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
CVSS v2: 4.3
EPSS exploit prediction: 1% (53rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Yiiframework Yii
Published: 2017-07-21
Last modified: 2026-06-17

Description

An XSS vulnerability exists in framework/views/errorHandler/exception.php in Yii Framework 2.0.12 affecting the exception screen when debug mode is enabled, because $exception->errorInfo is mishandled.

Frequently asked questions

What is CVE-2017-11516?: An XSS vulnerability exists in framework/views/errorHandler/exception.php in Yii Framework 2.0.12 affecting the exception screen when debug mode is enabled, because $exception->errorInfo is mishandled.
How severe is CVE-2017-11516?: CVE-2017-11516 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2017-11516 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-11516?: CVE-2017-11516 affects Yiiframework Yii. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-11516?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2017-11516 published?: CVE-2017-11516 was published on 2017-07-21 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:yiiframework:yii:2.0.12:*:*:*:*:*:*:*

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