CVE-2024-21546

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 4.4%, top 11% 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
9.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 9.8Exploit: NoneExposed: 0

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

Versions of the package unisharp/laravel-filemanager before 2.9.1 are vulnerable to Remote Code Execution (RCE) through using a valid mimetype and inserting the . character after the php file extension. This allows the attacker to execute malicious code.

CVSS v3
9.8
EG Score
9.8(medium)
EPSS
66.6%
KEV
Not listed

Published

December 18, 2024

Last Modified

April 15, 2026

Advisory Details (3)

Auto-updated May 3, 2026
⚠️ Active exploitation confirmed. No patch confirmed yet.
generic🔴 Active Exploitation

Remote Code Execution (RCE) in unisharp/laravel-filemanager | CVE-2024-21546 | Snyk

https://security.snyk.io/vuln/SNYK-PHP-UNISHARPLARAVELFILEMANAGER-7210316
generic

fix(security): file extension should not contain special characters · UniSharp/laravel-filemanager@8170760 · GitHub

https://github.com/UniSharp/laravel-filemanager/commit/8170760c0ae316d77b9363cd4c76ab68d3f63f0b
generic

RCE through Upload Shell on Unisharp Laravel Filemanager · GitHub

https://gist.github.com/ImHades101/338a06816ef97262ba632af9c78b78ca

Affected Packages

(1 across 1 ecosystem)
Packagist(1)
PackageVulnerable rangeFixed inDependents
unisharp/laravel-filemanager0.1.0 ... v2.9.0 (71 versions)2.9.1—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 11× in last 7d / 49× 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 110 total refreshes for this CVE.

  1. 2026-07-12 05:45 UTCEPSS rescore
  2. 2026-07-11 08:26 UTCEPSS rescore
  3. 2026-07-10 21:41 UTCOSV refresh
  4. 2026-07-09 19:09 UTCEPSS rescore
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  24. 2026-06-25 13:48 UTCEPSS rescore
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  1. 2026-06-24 14:04 UTCEPSS rescore
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  3. 2026-06-23 21:32 UTCEPSS rescore
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  5. 2026-06-22 14:24 UTCEPSS rescore
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  7. 2026-06-22 05:56 UTCOSV refresh
  8. 2026-06-21 14:55 UTCEPSS rescore
  9. 2026-06-21 14:55 UTCEPSS rescore
  10. 2026-06-21 01:58 UTCEPSS rescore
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  24. 2026-06-12 23:11 UTCEPSS rescore
  25. 2026-06-11 13:59 UTCEPSS rescore
  26. 2026-06-11 13:59 UTCEPSS rescore
  27. 2026-06-10 22:17 UTCEPSS rescore
  28. 2026-06-10 13:21 UTCEPSS rescore
  29. 2026-06-10 13:21 UTCEPSS rescore
  30. 2026-06-07 15:24 UTCEPSS rescore
  31. 2026-06-07 15:24 UTCEPSS rescore
  32. 2026-06-06 13:46 UTCEPSS rescore
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  40. 2026-06-04 13:11 UTCEPSS rescore
  41. 2026-06-04 02:39 UTCOSV refresh
  42. 2026-06-02 20:12 UTCEPSS rescore
  43. 2026-06-02 20:12 UTCEPSS rescore
  44. 2026-06-01 13:51 UTCEPSS rescore
  45. 2026-06-01 13:51 UTCEPSS rescore
  46. 2026-06-01 13:51 UTCEPSS rescore
  47. 2026-05-31 22:30 UTCEPSS rescore
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  49. 2026-05-31 00:15 UTCEPSS rescore
  50. 2026-05-31 00:15 UTCEPSS rescore
  51. 2026-05-29 13:43 UTCEPSS rescore
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  53. 2026-05-28 13:44 UTCEPSS rescore
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  55. 2026-05-28 13:44 UTCEPSS rescore
  56. 2026-05-27 13:40 UTCEPSS rescore
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  58. 2026-05-26 13:43 UTCEPSS rescore
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  60. 2026-05-26 07:18 UTCEPSS rescore
  61. 2026-05-26 07:18 UTCEPSS rescore
  62. 2026-05-23 00:09 UTCEG score recompute
  63. 2026-05-22 21:16 UTCEPSS rescore
  64. 2026-05-22 21:16 UTCEPSS rescore
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  67. 2026-05-21 22:42 UTCEPSS rescore
  68. 2026-05-21 22:42 UTCEPSS rescore
  69. 2026-05-21 20:06 UTCEG score recompute
  70. 2026-05-20 22:37 UTCEPSS rescore
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  75. 2026-05-20 11:21 UTCEPSS rescore

Publicly available exploits

(1 reference)

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

  • GitHub PoCajdumanhug/CVE-2024-21546
    First seen May 5, 2025

    This Python exploit script targets a vulnerable Laravel Filemanager created by UniSharp, which allows authenticated users to bypass file restrictions and upload malicious files. This can lead to Remote Code Execution (RCE) when the uploaded payload is triggered.

    Open source ↗

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2024-21546?
CVE-2024-21546 is a critical vulnerability published on December 18, 2024. Versions of the package unisharp/laravel-filemanager before 2.9.1 are vulnerable to Remote Code Execution (RCE) through using a valid mimetype and inserting the . character after the php file extension. This allows the attacker to execute malicious code.
When was CVE-2024-21546 disclosed?
CVE-2024-21546 was first published in the National Vulnerability Database on December 18, 2024, with the most recent update on April 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2024-21546 actively exploited?
CVE-2024-21546 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 66.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2024-21546?
CVE-2024-21546 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2024-21546?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2024-21546, 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

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