CVE-2016-9891

MEDIUMNVD 5.45.4—
EchelonGraph scoreMEDIUM confidence

Score 5.4 from GitHub Security Advisory published 2022-05-17. NVD baseline CVSS 5.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
5.4
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 1%CVSS: 5.4Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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).

CVSS v3
5.4
EG Score
5.4(medium)
EG Risk
29(Track)
EG Risk 29/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity54% × 45%
Exploitation1% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
57.9%
KEV
Not listed

Published

December 29, 2016

Last Modified

May 6, 2026

References (12)

Data Freshness Timeline

(refreshed 14× in last 7d / 41× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-24 14:13 UTCEPSS rescore
  2. 2026-07-23 14:15 UTCEPSS rescore
  3. 2026-07-23 01:24 UTCEG score recompute
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  44. 2026-06-06 13:10 UTCOSV refresh
  45. 2026-06-05 22:44 UTCEPSS rescore
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  66. 2026-05-22 17:26 UTCEG score recompute
  67. 2026-05-22 17:26 UTCGHSA enrichment
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Frequently asked(5)

What is CVE-2016-9891?
CVE-2016-9891 is a medium vulnerability published on December 29, 2016. Cross-site scripting (XSS) vulnerability in admin/media.php and admin/mediaitem.php in Dotclear before 2.11 allows remote authenticated users to inject arbitrary web script or HTML via the upfiletitle or mediatitle parameter (aka the media title).
When was CVE-2016-9891 disclosed?
CVE-2016-9891 was first published in the National Vulnerability Database on December 29, 2016, with the most recent update on May 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2016-9891 actively exploited?
CVE-2016-9891 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 57.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2016-9891?
CVE-2016-9891 has a CVSS v3 base score of 5.4 (NVD).
How do I remediate CVE-2016-9891?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2016-9891, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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