CVE-2011-4908

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 56% (99th percentile of EPSS-scored CVEs). 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
Weaponized
9.8EG
EchelonGraph verdictPlan mitigationRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • High exploitation likelihood — EPSS 56%
  • Public exploit code is available (Metasploit, Exploit-DB, marked verified by Exploit-DB)
CISA-KEV: Not listedEPSS PROB: 56%CVSS: 9.8Exploit: Metasploit · Exploit-DB (verified)Exposed services: Not assessed

No fix has been recorded since the CVE record was published in 2020 — isolate the affected system (restrict network access to it, for example with a firewall, or keep it off the internet) or retire the product.

TinyBrowser plugin for Joomla! before 1.5.13 allows arbitrary file upload via upload.php.

CVSS v3
9.8
EG Score
9.8CRITICALmedium confidence
EG Risk
75
EG Risk 75/100

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 (value × EchelonGraph’s weight)
Severity98% × 45%
The EG Score, 9.8 of 10.
Exploitation65% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 2 (Weaponized): a constant, not a probability.
Automatability30% × 15%
EchelonGraph's default before algorithm v3.4: CISA had not published Automatable for this CVE.
SSVC (CISA's decision table, applied by EchelonGraph): Track at low, Track* at medium and Attend at high mission impact.
Exploitation public PoC (EG-KEV: weaponized) · Automatable unknown (not published for this CVE) · Technical impact total (CVSS ≥ 9.0). EchelonGraph holds no SSVC assessment of this CVE from CISA: none of these inputs is from Vulnrichment. EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: No fix has been recorded since the CVE record was published in 2020. Isolate the affected system within your standard update timelines at low or medium mission impact and sooner than that at high (restrict network access to it, for example with a firewall, or keep it off the internet) or retire the product.
EPSS PROB
56%
EPSS %ILE
99th
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at low, Track* at medium and Attend at high mission impact.

No fix has been recorded since the CVE record was published in 2020. Isolate the affected system within your standard update timelines at low or medium mission impact and sooner than that at high (restrict network access to it, for example with a firewall, or keep it off the internet) or retire the product.

Exploitation public PoC (EG-KEV: weaponized) · Automatable unknown (not published for this CVE) · Technical impact total (CVSS ≥ 9.0). EchelonGraph holds no SSVC assessment of this CVE from CISA: none of these inputs is from 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

Published

February 12, 2020

Last Modified

November 21, 2024

Advisory Details (3)

Auto-updated Oct 7, 2026
No fix on record since 2020.
generic

oss-security - Re: CVE-request for three 2009 Joomla issues

https://www.openwall.com/lists/oss-security/2011/12/25/7
generic

Joomla! Plugin tinybrowser 1.5.12 - Arbitrary File Upload / Execution - PHP webapps Exploit

https://www.exploit-db.com/exploits/9926
generic

CVE-2011-4908 Open redirect in LoginHub Portal post-authentication target resolver

https://vulmon.com/vulnerabilitydetails?qid=CVE-2011-4908

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 4× in last 7d / 12× 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.

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. 20 repeat rows among the latest 91 are merged into the row they repeat.

  1. 2026-10-10 19:54 UTCEPSS rescoreEPSS 56% · 99th percentile
  2. 2026-10-09 20:00 UTCEPSS rescoreEPSS 56% · 99th percentile
  3. 2026-10-07 23:39 UTCEPSS rescoreEPSS 56% · 99th percentile
  4. 2026-10-06 15:10 UTCEPSS rescoreEPSS 56% · 99th percentile
  5. 2026-10-03 14:20 UTCEPSS rescoreEPSS 56% · 99th percentile
  6. 2026-09-29 08:24 UTCEG score recompute
  7. 2026-09-27 13:39 UTCEPSS rescoreEPSS 56% · 99th percentile
  8. 2026-09-26 15:52 UTCEPSS rescoreEPSS 56% · 99th percentile
  9. 2026-09-24 13:57 UTCEPSS rescoreEPSS 56% · 99th percentile
  10. 2026-09-20 20:08 UTCEPSS rescoreEPSS 56% · 98th percentile
  11. 2026-09-16 13:58 UTCEPSS rescoreEPSS 56% · 98th percentile
  12. 2026-09-15 03:04 UTCEPSS rescoreEPSS 56% · 98th percentile
  13. 2026-09-05 15:22 UTCEPSS rescoreEPSS 56% · 98th percentile
  14. 2026-09-04 13:55 UTCEPSS rescoreEPSS 56% · 98th percentile
  15. 2026-08-28 21:34 UTCEPSS rescoreEPSS 56% · 98th percentile
  16. 2026-08-26 14:40 UTCEPSS rescoreEPSS 56% · 98th percentile
  17. 2026-08-21 23:43 UTCEPSS rescoreEPSS 56% · 98th percentile
  18. 2026-08-19 16:59 UTCEPSS rescoreEPSS 56% · 98th percentile
  19. 2026-08-18 13:42 UTCEPSS rescoreEPSS 56% · 98th percentile
  20. 2026-08-16 02:09 UTCEPSS rescoreEPSS 56% · 98th percentile
  21. 2026-08-15 01:25 UTCEPSS rescoreEPSS 56% · 98th percentile
  22. 2026-08-07 16:21 UTCEPSS rescoreEPSS 56% · 98th percentile
  23. 2026-08-05 19:12 UTCEPSS rescoreEPSS 56% · 98th percentile
  24. 2026-07-30 01:26 UTCEPSS rescoreEPSS 56% · 98th percentile
  25. 2026-07-28 15:31 UTCEPSS rescoreEPSS 56% · 98th percentile
Show 46 more
  1. 2026-07-23 01:06 UTCEG score recompute
  2. 2026-07-23 00:09 UTCEG score recompute
  3. 2026-07-22 21:48 UTCEG score recompute
  4. 2026-07-22 14:04 UTCEPSS rescoreEPSS 56% · 98th percentile
  5. 2026-07-21 15:21 UTCEPSS rescoreEPSS 56% · 98th percentile
  6. 2026-07-20 17:03 UTCEPSS rescoreEPSS 56% · 98th percentile
  7. 2026-07-19 14:27 UTCEPSS rescoreEPSS 56% · 98th percentile
  8. 2026-07-19 02:25 UTCEPSS rescoreEPSS 56% · 98th percentile
  9. 2026-07-16 16:58 UTCEPSS rescoreEPSS 56% · 98th percentile
  10. 2026-07-15 16:54 UTCEPSS rescoreEPSS 56% · 98th percentile
  11. 2026-07-13 22:25 UTCEPSS rescoreEPSS 56% · 98th percentile
  12. 2026-07-13 06:08 UTCEPSS rescoreEPSS 56% · 98th percentile
  13. 2026-07-11 08:22 UTCEPSS rescoreEPSS 56% · 98th percentile
  14. 2026-07-09 19:05 UTCEPSS rescoreEPSS 56% · 98th percentile
  15. 2026-07-05 02:26 UTCEPSS rescoreEPSS 56% · 98th percentile
  16. 2026-07-02 14:01 UTCEPSS rescoreEPSS 56% · 98th percentile
  17. 2026-07-01 15:02 UTCEPSS rescoreEPSS 56% · 98th percentile
  18. 2026-06-30 23:19 UTCEPSS rescoreEPSS 56% · 98th percentile
  19. 2026-06-28 04:53 UTCEPSS rescoreEPSS 56% · 98th percentile
  20. 2026-06-27 03:05 UTCEPSS rescoreEPSS 56% · 98th percentile
  21. 2026-06-25 13:46 UTCEPSS rescoreEPSS 56% · 98th percentile
  22. 2026-06-24 14:02 UTCEPSS rescoreEPSS 56% · 98th percentile
  23. 2026-06-23 21:30 UTCEPSS rescoreEPSS 56% · 98th percentile
  24. 2026-06-21 01:56 UTCEPSS rescoreEPSS 56% · 98th percentile
  25. 2026-06-19 19:22 UTCEPSS rescoreEPSS 56% · 98th percentile
  26. 2026-06-18 17:49 UTCEPSS rescoreEPSS 56% · 98th percentile
  27. 2026-06-17 17:49 UTCEPSS rescoreEPSS 56% · 98th percentile
  28. 2026-06-16 17:49 UTCEPSS rescoreEPSS 56% · 98th percentile
  29. 2026-06-15 17:44 UTCEPSS rescoreEPSS 56% · 98th percentile
  30. 2026-06-13 22:57 UTCEPSS rescoreEPSS 62% · 98th percentile
  31. 2026-06-12 23:08 UTCEPSS rescoreEPSS 62% · 98th percentile
  32. 2026-06-10 22:14 UTCEPSS rescoreEPSS 62% · 98th percentile
  33. 2026-06-10 13:18 UTCEPSS rescoreEPSS 62% · 98th percentile
  34. 2026-06-08 14:14 UTCEPSS rescoreEPSS 62% · 98th percentile
  35. 2026-06-06 13:45 UTCEPSS rescoreEPSS 62% · 98th percentile
  36. 2026-06-05 22:44 UTCEPSS rescoreEPSS 62% · 98th percentile
  37. 2026-06-05 06:08 UTCEPSS rescoreEPSS 62% · 98th percentile
  38. 2026-06-04 13:09 UTCEPSS rescoreEPSS 62% · 98th percentile
  39. 2026-06-02 20:10 UTCEPSS rescoreEPSS 62% · 98th percentile
  40. 2026-06-01 13:49 UTCEPSS rescoreEPSS 62% · 98th percentile
  41. 2026-05-31 00:14 UTCEPSS rescoreEPSS 62% · 98th percentile
  42. 2026-05-29 13:41 UTCEPSS rescoreEPSS 62% · 98th percentile
  43. 2026-05-27 13:38 UTCEPSS rescoreEPSS 62% · 98th percentile
  44. 2026-05-27 07:46 UTCEG score recompute
  45. 2026-05-27 07:46 UTCGHSA enrichmentGHSA-2cvc-p4v7-3gpx · GitHub severity HIGH
  46. 2026-05-24 16:43 UTCEPSS rescoreEPSS 62% · 98th percentile

Publicly available exploits

(3 references)

Public exploit code is referenced for this CVE (1 Metasploit module, 2 Exploit-DB entries). No fix is on record, so defenders should restrict or isolate affected systems accordingly.

  • Metasploitexploit/unix/webapp/joomla_tinybrowser✓ verified
    Published Oct 26, 2009

    Joomla 1.5.12 TinyBrowser File Upload Code Execution

    Open source ↗
  • Exploit-DBEDB-9296✓ verified
    Published Jul 28, 2009

    TinyBrowser (TinyMCE Editor File browser) 1.41.6 - Multiple Vulnerabilities

    Open source ↗
  • Exploit-DBEDB-9926✓ verified
    Published Jul 22, 2009

    Joomla! Plugin tinybrowser 1.5.12 - Arbitrary File Upload / Execution

    Open source ↗

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2011-4908?
CVE-2011-4908 is a critical-severity vulnerability; its CVE record was published on February 12, 2020. TinyBrowser plugin for Joomla! before 1.5.13 allows arbitrary file upload via upload.php.
When was the CVE record for CVE-2011-4908 published?
The CVE record for CVE-2011-4908 was published on February 12, 2020. 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 November 21, 2024; the record at its source may have been updated since.
Is CVE-2011-4908 actively exploited?
CVE-2011-4908 is not currently on CISA's Known Exploited Vulnerabilities catalog. EchelonGraph's EG-KEV model places it in Tier 2 (Weaponized), which is not evidence of exploitation: a Metasploit module exists for it, and Exploit-DB marks a public exploit for it as verified. EchelonGraph does not test whether exploit code works. FIRST EPSS estimates a 56% probability of exploitation in the next 30 days (99th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2011-4908?
CVE-2011-4908 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2011-4908?
No fix for CVE-2011-4908 has been recorded since its CVE record was published in 2020, and EchelonGraph holds no vendor advisory for it. Isolate the affected system (restrict network access to it, for example with a firewall, or keep it off the internet) or retire the product.

Dependency Blast Radius

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