How severe is CVE-2016-9891?

CVE-2016-9891 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2016-9891 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-9891?

CVE-2016-9891 affects Dotclear. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2016-9891?

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

When was CVE-2016-9891 published?

CVE-2016-9891 was published on 2016-12-29 and last updated on 2026-06-17.

CVE-2016-9891

CVE-2016-9891 is a medium-severity vulnerability in Dotclear with a CVSS 3.x base score of 5.4. 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-79.

Key facts

Severity: Medium (CVSS 3.x base score 5.4)
CVSS v2: 3.5
EPSS exploit prediction: 1% (57th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Dotclear
Published: 2016-12-29
Last modified: 2026-06-17

Description

Cross-site scripting (XSS) vulnerability in admin/media.php and admin/media_item.php in Dotclear before 2.11 allows remote authenticated users to inject arbitrary web script or HTML via the upfiletitle or media_title parameter (aka the media title).

Frequently asked questions

What is CVE-2016-9891?: Cross-site scripting (XSS) vulnerability in admin/media.php and admin/media_item.php in Dotclear before 2.11 allows remote authenticated users to inject arbitrary web script or HTML via the upfiletitle or media_title parameter (aka the media title).
How severe is CVE-2016-9891?: CVE-2016-9891 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2016-9891 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-9891?: CVE-2016-9891 affects Dotclear. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2016-9891?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2016-9891 published?: CVE-2016-9891 was published on 2016-12-29 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:dotclear:dotclear:*:*:*:*:*:*:*:*

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