CVE-2022-23626

HIGHNVD 8.58.5—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.5 under NVD CVSS v3. EPSS exploit probability: 9.9%, top 5% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
Elevated
8.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 10%CVSS: 8.5Exploit: Elevated riskExposed: 0

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

m1k1o/blog is a lightweight self-hosted facebook-styled PHP blog. Errors from functions imagecreatefrom* and image* have not been checked properly. Although PHP issued warnings and the upload function returned false, the original file (that could contain a malicious payload) was kept on the disk. Users are advised to upgrade as soon as possible. There are no known workarounds for this issue.

CVSS v3
8.5
EG Score
8.5(medium)
EG Risk
54(Track*)
EG Risk 54/100SSVC: 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
Severity85% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
10%
EPSS %ILE
95%
KEV
Not listed

Published

February 8, 2022

Last Modified

November 21, 2024

Advisory Details (2)

Auto-updated Sep 2, 2026
Patch available. Sources: github_commit, github.
github Patch Available

Insufficient checking of uploaded files · Advisory · m1k1o/blog · GitHub

https://github.com/m1k1o/blog/security/advisories/GHSA-wmqj-5v54-24x4
github_commit Patch Available

commit 6f5e59f1401c (m1k1o/blog)

Patch available: m1k1o/blog v1.4 (contains commit 6f5e59f1401c)

https://github.com/m1k1o/blog/commit/6f5e59f1401c4a3cf2e518aa85b231ea14e8a2ef

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 8× in last 7d / 27× 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.

Showing the most recent 100 of 130 total refreshes for this CVE.

  1. 2026-09-07 15:58 UTCEPSS rescore
  2. 2026-09-06 13:45 UTCEPSS rescore
  3. 2026-09-05 21:21 UTCOSV refresh
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  20. 2026-08-19 08:29 UTCOSV refresh
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  1. 2026-08-13 21:57 UTCEPSS rescore
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  5. 2026-08-06 13:44 UTCEPSS rescore
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  7. 2026-08-04 10:34 UTCEPSS rescore
  8. 2026-08-04 04:27 UTCOSV refresh
  9. 2026-08-02 02:24 UTCEPSS rescore
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  19. 2026-07-23 02:08 UTCEG score recompute
  20. 2026-07-22 22:55 UTCEG score recompute
  21. 2026-07-22 14:06 UTCEPSS rescore
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  25. 2026-07-20 17:05 UTCEPSS rescore
  26. 2026-07-19 14:29 UTCEPSS rescore
  27. 2026-07-19 02:27 UTCEPSS rescore
  28. 2026-07-18 10:02 UTCEPSS rescore
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  30. 2026-07-17 23:59 UTCOSV refresh
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  40. 2026-07-09 19:07 UTCEPSS rescore
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  42. 2026-07-07 13:44 UTCEPSS rescore
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  45. 2026-07-06 02:21 UTCEPSS rescore
  46. 2026-07-05 02:28 UTCEPSS rescore
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  49. 2026-07-01 15:04 UTCEPSS rescore
  50. 2026-06-30 23:20 UTCEPSS rescore
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  52. 2026-06-29 21:02 UTCOSV refresh
  53. 2026-06-28 04:54 UTCEPSS rescore
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  55. 2026-06-27 03:07 UTCEPSS rescore
  56. 2026-06-25 13:48 UTCEPSS rescore
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  59. 2026-06-23 21:31 UTCEPSS rescore
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  64. 2026-06-19 19:24 UTCEPSS rescore
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  66. 2026-06-18 17:51 UTCEPSS rescore
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  68. 2026-06-17 17:51 UTCEPSS rescore
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  70. 2026-06-16 17:51 UTCEPSS rescore
  71. 2026-06-15 17:46 UTCEPSS rescore
  72. 2026-06-13 22:58 UTCEPSS rescore
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  74. 2026-06-12 23:10 UTCEPSS rescore
  75. 2026-06-12 23:10 UTCEPSS rescore

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Exploit-DBEDB-50943
    First seen May 23, 2022

    m1k1o's Blog v.10 - Remote Code Execution (RCE) (Authenticated)

    Open source ↗

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2022-23626?
CVE-2022-23626 is a high vulnerability published on February 8, 2022. m1k1o/blog is a lightweight self-hosted facebook-styled PHP blog. Errors from functions imagecreatefrom and image have not been checked properly. Although PHP issued warnings and the upload function returned false, the original file (that could contain a malicious payload) was kept on the disk.…
When was CVE-2022-23626 disclosed?
CVE-2022-23626 was first published in the National Vulnerability Database on February 8, 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-2022-23626 actively exploited?
CVE-2022-23626 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 10% probability of exploitation in the next 30 days, which ranks it in the top 4.8% of all scored CVEs.
What is the CVSS score of CVE-2022-23626?
CVE-2022-23626 has a CVSS v3 base score of 8.5 (NVD).
How do I remediate CVE-2022-23626?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-23626, 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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