In maccms v10, an attacker can log in through /index.php/user/login in the "col" and "openid" parameters to gain privileges.
CVE-2021-45786
CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence
Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2022-03-17. NVD baseline CVSS 9.8; sources differ by 0.0.
Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 9.8Exploit: None knownExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 9.8
- EG Score
- 9.8(medium)
- EG Risk
- 49(Track)EG Risk 49/100SSVC: 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 computedSeverity98% × 45%Exploitation1% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 1%
- EPSS %ILE
- 64%
- KEV
- Not listed
Published
March 16, 2022
Last Modified
November 21, 2024
Advisory Details (1)
Auto-updated Jul 29, 2026No patch confirmed yet.
generic
There is an arbitrary user login vulnerability · Issue #747 · magicblack/maccms10 · GitHub
https://github.com/magicblack/maccms10/issues/747Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Frequently asked(5)
What is CVE-2021-45786?
CVE-2021-45786 is a critical vulnerability published on March 16, 2022. In maccms v10, an attacker can log in through /index.php/user/login in the "col" and "openid" parameters to gain privileges.
When was CVE-2021-45786 disclosed?
CVE-2021-45786 was first published in the National Vulnerability Database on March 16, 2022, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2021-45786 actively exploited?
CVE-2021-45786 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 35.5% of all scored CVEs.
What is the CVSS score of CVE-2021-45786?
CVE-2021-45786 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2021-45786?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-45786, 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.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2021-45786
Is Your Infrastructure Affected by CVE-2021-45786?
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