CVE-2018-17856: joomla joomla\!
CVSS: 7.2v3.0HighModified
Published 09-10-2018Last modified 05-08-2024
Vulnerability summary
CVE-2018-17856 is a high (CVSS 7.2) vulnerability in joomla joomla\!. EPSS estimates a 2.69% chance of exploitation in the next 30 days, higher than 85.7% of scored vulnerabilities.
CVSS score
7.2/10
010
High · v3.0 (NVD)EPSS score
2.69%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 09-10-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
An issue was discovered in Joomla! before 3.8.13. com_joomlaupdate allows the execution of arbitrary code. The default ACL config enabled the ability of Administrator-level users to access com_joomlaupdate and trigger code execution.
CVSS metrics
2 scores · 1 source · 2 versionsHigh 7.2Preferred score · NVD (NIST)
CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:HSourcesSingle source
Medium 6.5Preferred score · NVD (NIST)
AV:N/AC:L/Au:S/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
2.69%
Chance of exploitation in the next 30 days
Percentile
86%
Versus all other CVEs
30-day change
0.00 pp
From 2.69% on 20-09-2026
20-09-202620-10-2026
EPSS score2.69%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Joomla1 product
- joomla\!≥ 2.5.4, < 3.8.13
1 vendor · 1 product