7.5

CVE-2015-8562: joomla joomla\! Improper Input Validation

CVSS: 7.5v2.0HighModified
Published 16-12-2015Last modified 06-08-2024
Open JSON

Vulnerability summary

CVE-2015-8562 is a high (CVSS 7.5) Improper Input Validation vulnerability in joomla joomla\!. EPSS estimates a 98.28% chance of exploitation in the next 30 days, higher than 99.9% of scored vulnerabilities. 5 public exploits are recorded.

Overall risk
60/100
0100
High · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v2.0 (NVD)
EPSS score
98.28%
0%100%
Critical · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits5reference, metasploit, exploit-database

Timeline

  1. 16-12-2015
    PublishedVulnerability first disclosed.
  2. 06-08-2024
    Last modifiedVulnerability information updated.

Description

Joomla! 1.5.x, 2.x, and 3.x before 3.4.6 allow remote attackers to conduct PHP object injection attacks and execute arbitrary PHP code via the HTTP User-Agent header, as exploited in the wild in December 2015.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

98.28%

Chance of exploitation in the next 30 days

Percentile

100%

Versus all other CVEs

30-day change

0.00 pp

From 98.28% on 21-09-2026

21-09-202621-10-2026
EPSS score
98.28%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

5 found
  • referenceUnverified

    Exploit Reference (packetstormsecurity.com)

    Maturity: unknown

  • referenceUnverified

    Exploit Reference (blog.sucuri.net)

    Maturity: unknown

  • MetasploitMetasploitremoteVerified

    Joomla HTTP Header Unauthenticated Remote Code Execution

    exploit/multi/http/joomla_http_header_rce

    Maturity: weaponized

Show all 5 exploits
  • exploit-databasephpVerified

    Joomla! 1.5 < 3.4.5 - Object Injection Remote Command Execution

    Maturity: poc

  • exploit-databasephpUnverified

    Joomla! 1.5 < 3.4.6 - Object Injection 'x-forwarded-for' Header Remote Code Execution

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Joomla1 product
  • joomla\!EOL1.5.0 | 1.5.1 | 1.5.2 | 1.5.3 | 1.5.4 | 1.5.6 | 1.5.7 | 1.5.8 | 1.5.9 | 1.5.10 | 1.5.11 | 1.5.12 | 1.5.13 | 1.5.14 | 1.5.15 | 1.5.16 | 1.5.17 | 1.5.18 | 1.5.19 | 1.5.20 | 1.5.21 | 1.5.22 | 1.5.23 | 1.5.24 | 1.5.25 | 1.5.26 | 1.6.0 | 1.6.1 | 1.6.2 | 1.6.3 | 1.6.4 | 1.6.5 | 1.6.6 | 1.7.0 | 1.7.1 | 1.7.2 | 1.7.3 | 1.7.4 | 1.7.5 | 2.5.0 | 2.5.1 | 2.5.2 | 2.5.3 | 2.5.4 | 2.5.5 | 2.5.6 | 2.5.7 | 2.5.8 | 2.5.9 | 2.5.10 | 2.5.11 | 2.5.12 | 2.5.13 | 2.5.14 | 2.5.15 | 2.5.16 | 2.5.17 | 2.5.18 | 2.5.19 | 2.5.20 | 2.5.21 | 2.5.22 | 2.5.23 | 2.5.24 | 2.5.25 | 2.5.26 | 2.5.27 | 2.5.28 | 3.0.0 | 3.0.1 | 3.0.2 | 3.0.3 | 3.1.0 | 3.1.1 | 3.1.2 | 3.1.3 | 3.1.4 | 3.1.5 | 3.1.6 | 3.2.0 | 3.2.1 | 3.2.2 | 3.2.3 | 3.2.4 | 3.3.0 | 3.3.1 | 3.3.2 | 3.3.3 | 3.3.4 | 3.4.0 | 3.4.1 | 3.4.2 | 3.4.3 | 3.4.4 | 3.4.5

1 vendor · 1 product

References

9 links