CVE-2024-21546

CRITICALNVD 9.89.8
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to NVD's CVSS score.

This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 1.3% (70th percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from NVD CVSS v3
Sources: EPSS, NVD CVSS v3
Elevated
9.8EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (the SSVC decision on this page).
  • Public exploit or proof-of-concept code is available
CISA-KEV: Not listedEPSS PROB: 1.3%CVSS: 9.8Exploit: Public PoCExposed services: Not assessed

A fix is available — apply it.

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
9.8CRITICALmedium confidence
EG Risk
60
EG Risk 60/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity98% × 45%
Impact severity (EG Severity): CVSS 9.8 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
1.3%
EPSS %ILE
70th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (9.8): severity, escalated by confirmed exploitation. This CVE's 9.8 is its impact severity (EG Severity), not escalated.

EG Severity
9.8 CRITICALCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.NVD CVSS v3 · CVSS v3.0 or v3.1
EG Likelihood
1.3% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-22). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at low or medium mission impact; Track* at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

December 18, 2024

Last Modified

April 15, 2026

Advisory Details (3)

Auto-updated Oct 8, 2026
Patch available. Sources: github_commit.
Web page

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

https://security.snyk.io/vuln/SNYK-PHP-UNISHARPLARAVELFILEMANAGER-7210316
GitHub commit Patch Available

commit 8170760c0ae3 (UniSharp/laravel-filemanager)

Patch available: UniSharp/laravel-filemanager v2.9.1 (contains commit 8170760c0ae3)

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

RCE through Upload Shell on Unisharp Laravel Filemanager · GitHub

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

Affected Packages

(1 across 1 ecosystem)
Packagist(1)
PackageVulnerable rangeFix by version rangeDependents
unisharp/laravel-filemanager0.1.0 ... v2.9.0 (71 versions)
  • every version up to 2.9.1: fixed in 2.9.1
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 15× in last 7d / 42× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 97 of 224 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 3 repeat rows among the latest 100 are merged into the row they repeat. The 127 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-23 16:29 UTCEPSS rescoreEPSS 1.3% · 70th percentile
  2. 2026-10-23 12:07 UTCEG score recompute
  3. 2026-10-22 16:31 UTCEPSS rescoreEPSS 1.3% · 70th percentile
  4. 2026-10-22 13:38 UTCEG score recompute
  5. 2026-10-21 16:29 UTCEPSS rescoreEPSS 1.3% · 70th percentile
  6. 2026-10-20 16:43 UTCEG score recompute
  7. 2026-10-20 16:30 UTCEPSS rescoreEPSS 1.3% · 70th percentile
  8. 2026-10-19 18:16 UTCEG score recompute
  9. 2026-10-19 16:29 UTCEPSS rescoreEPSS 1.3% · 70th percentile
  10. 2026-10-18 19:44 UTCEG score recompute
  11. 2026-10-18 16:29 UTCEPSS rescoreEPSS 1.3% · 70th percentile
  12. 2026-10-18 07:28 UTCEG score recompute
  13. 2026-10-17 21:18 UTCEG score recompute
  14. 2026-10-17 16:30 UTCEPSS rescoreEPSS 1.3% · 70th percentile
  15. 2026-10-16 22:51 UTCEG score recompute
  16. 2026-10-16 16:36 UTCEPSS rescoreEPSS 1.3% · 70th percentile
  17. 2026-10-15 19:50 UTCEG score recompute
  18. 2026-10-15 16:29 UTCEPSS rescoreEPSS 1.3% · 70th percentile
  19. 2026-10-14 16:30 UTCEPSS rescoreEPSS 1.3% · 70th percentile
  20. 2026-10-14 13:27 UTCEG score recompute
  21. 2026-10-13 16:30 UTCEPSS rescoreEPSS 1.3% · 69th percentile
  22. 2026-10-13 13:30 UTCEG score recompute
  23. 2026-10-12 16:31 UTCEPSS rescoreEPSS 1.3% · 69th percentile
  24. 2026-10-12 15:00 UTCEG score recompute
  25. 2026-10-11 21:28 UTCEG score recompute
Show 72 more
  1. 2026-10-11 16:21 UTCEG score recompute
  2. 2026-10-11 13:45 UTCEPSS rescoreEPSS 1.3% · 69th percentile
  3. 2026-10-10 19:58 UTCEPSS rescoreEPSS 1.3% · 69th percentile
  4. 2026-10-09 20:05 UTCEPSS rescoreEPSS 1.3% · 69th percentile
  5. 2026-10-08 17:07 UTCEPSS rescoreEPSS 1.3% · 69th percentile
  6. 2026-10-07 23:46 UTCEPSS rescoreEPSS 1.3% · 69th percentile
  7. 2026-10-07 04:05 UTCOSV refresh
  8. 2026-10-06 15:15 UTCEPSS rescoreEPSS 1.3% · 69th percentile
  9. 2026-10-05 17:41 UTCEPSS rescoreEPSS 1.3% · 69th percentile
  10. 2026-10-04 23:20 UTCEPSS rescoreEPSS 1.3% · 69th percentile
  11. 2026-10-03 14:23 UTCEPSS rescoreEPSS 1.3% · 69th percentile
  12. 2026-10-01 19:48 UTCEPSS rescoreEPSS 1.3% · 69th percentile
  13. 2026-09-30 16:56 UTCEG score recompute
  14. 2026-09-30 15:01 UTCEPSS rescoreEPSS 1.3% · 69th percentile
  15. 2026-09-29 15:17 UTCEPSS rescoreEPSS 1.3% · 69th percentile
  16. 2026-09-28 13:49 UTCEPSS rescoreEPSS 1.3% · 69th percentile
  17. 2026-09-24 14:01 UTCEPSS rescoreEPSS 1.3% · 69th percentile
  18. 2026-09-23 13:46 UTCEPSS rescoreEPSS 1.3% · 68th percentile
  19. 2026-09-20 20:14 UTCEPSS rescoreEPSS 1.3% · 68th percentile
  20. 2026-09-17 09:50 UTCOSV refresh
  21. 2026-09-16 14:06 UTCEPSS rescoreEPSS 1.3% · 68th percentile
  22. 2026-09-16 05:11 UTCEPSS rescoreEPSS 1.3% · 68th percentile
  23. 2026-09-15 03:08 UTCEPSS rescoreEPSS 1.3% · 68th percentile
  24. 2026-09-13 16:45 UTCEPSS rescoreEPSS 1.3% · 68th percentile
  25. 2026-09-12 14:59 UTCEPSS rescoreEPSS 1.3% · 68th percentile
  26. 2026-09-11 14:51 UTCEPSS rescoreEPSS 1.3% · 68th percentile
  27. 2026-09-11 09:34 UTCEPSS rescoreEPSS 1.3% · 68th percentile
  28. 2026-09-08 21:58 UTCEPSS rescoreEPSS 1.3% · 68th percentile
  29. 2026-09-07 15:59 UTCEPSS rescoreEPSS 1.3% · 68th percentile
  30. 2026-09-06 13:46 UTCEPSS rescoreEPSS 1.3% · 68th percentile
  31. 2026-09-05 15:26 UTCEPSS rescoreEPSS 1.3% · 67th percentile
  32. 2026-09-04 13:58 UTCEPSS rescoreEPSS 1.3% · 67th percentile
  33. 2026-09-04 05:05 UTCEPSS rescoreEPSS 1.3% · 67th percentile
  34. 2026-09-02 14:10 UTCEPSS rescoreEPSS 1.3% · 67th percentile
  35. 2026-09-01 13:52 UTCEPSS rescoreEPSS 1.3% · 67th percentile
  36. 2026-08-30 19:15 UTCEPSS rescoreEPSS 1.3% · 67th percentile
  37. 2026-08-30 01:20 UTCEPSS rescoreEPSS 1.3% · 67th percentile
  38. 2026-08-29 10:13 UTCOSV refresh
  39. 2026-08-28 21:39 UTCEPSS rescoreEPSS 1.3% · 67th percentile
  40. 2026-08-27 14:23 UTCEPSS rescoreEPSS 1.3% · 67th percentile
  41. 2026-08-26 14:44 UTCEPSS rescoreEPSS 1.3% · 67th percentile
  42. 2026-08-25 13:47 UTCEPSS rescoreEPSS 1.3% · 67th percentile
  43. 2026-08-23 00:17 UTCEPSS rescoreEPSS 1.3% · 67th percentile
  44. 2026-08-21 23:47 UTCEPSS rescoreEPSS 1.3% · 67th percentile
  45. 2026-08-20 22:53 UTCEPSS rescoreEPSS 1.3% · 67th percentile
  46. 2026-08-19 17:02 UTCEPSS rescoreEPSS 1.3% · 67th percentile
  47. 2026-08-18 13:46 UTCEPSS rescoreEPSS 1.3% · 67th percentile
  48. 2026-08-17 13:45 UTCEPSS rescoreEPSS 1.3% · 67th percentile
  49. 2026-08-16 14:54 UTCEPSS rescoreEPSS 1.3% · 67th percentile
  50. 2026-08-16 02:12 UTCEPSS rescoreEPSS 1.3% · 67th percentile
  51. 2026-08-15 01:28 UTCEPSS rescoreEPSS 1.3% · 67th percentile
  52. 2026-08-13 21:58 UTCEPSS rescoreEPSS 1.3% · 67th percentile
  53. 2026-08-12 22:01 UTCOSV refresh
  54. 2026-08-12 13:49 UTCEPSS rescoreEPSS 1.3% · 67th percentile
  55. 2026-08-11 13:40 UTCEPSS rescoreEPSS 1.3% · 66th percentile
  56. 2026-08-09 13:45 UTCEPSS rescoreEPSS 1.3% · 66th percentile
  57. 2026-08-08 16:35 UTCEPSS rescoreEPSS 1.3% · 66th percentile
  58. 2026-08-06 13:45 UTCEPSS rescoreEPSS 1.3% · 66th percentile
  59. 2026-08-05 19:15 UTCEPSS rescoreEPSS 1.3% · 66th percentile
  60. 2026-08-04 15:08 UTCEPSS rescoreEPSS 1.3% · 66th percentile
  61. 2026-08-04 10:36 UTCEPSS rescoreEPSS 1.3% · 66th percentile
  62. 2026-08-03 10:34 UTCEPSS rescoreEPSS 1.3% · 66th percentile
  63. 2026-08-02 02:25 UTCEPSS rescoreEPSS 1.3% · 66th percentile
  64. 2026-08-01 04:14 UTCEPSS rescoreEPSS 1.3% · 66th percentile
  65. 2026-07-30 16:26 UTCEPSS rescoreEPSS 1.3% · 66th percentile
  66. 2026-07-30 01:29 UTCEPSS rescoreEPSS 1.3% · 66th percentile
  67. 2026-07-28 15:34 UTCEPSS rescoreEPSS 1.3% · 66th percentile
  68. 2026-07-28 05:24 UTCOSV refresh
  69. 2026-07-26 14:53 UTCEPSS rescoreEPSS 1.3% · 66th percentile
  70. 2026-07-25 14:16 UTCEPSS rescoreEPSS 1.3% · 66th percentile
  71. 2026-07-24 14:16 UTCEPSS rescoreEPSS 1.3% · 66th percentile
  72. 2026-07-23 14:17 UTCEPSS rescoreEPSS 1.3% · 66th percentile

Publicly available exploits

(1 reference)

Public exploit code is referenced for this CVE (1 GitHub PoC). Defenders should treat patch urgency accordingly.

  • GitHub PoCajdumanhug/CVE-2024-21546
    Published 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 product + same CWE)

Same product

2 shown

Packagist:unisharp/laravel-filemanager

Frequently asked(5)

What is CVE-2024-21546?
CVE-2024-21546 is a critical-severity vulnerability; its CVE record was 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 the CVE record for CVE-2024-21546 published?
The CVE record for CVE-2024-21546 was published on December 18, 2024. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of April 15, 2026; the record at its source may have been updated since.
Is CVE-2024-21546 actively exploited?
CVE-2024-21546 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1.3% probability of exploitation in the next 30 days (70th percentile of EPSS-scored CVEs).
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?
A fix for CVE-2024-21546 is available: update to the fixed version the vendor names in its advisory.

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