CVE-2018-20986: advancedcustomfields advanced_custom_fields Cross-site Scripting
CVSS: 5.4v3.0MediumModified
Published 22-08-2019Last modified 05-08-2024
Vulnerability summary
CVE-2018-20986 is a medium (CVSS 5.4) Cross-site Scripting vulnerability in advancedcustomfields advanced_custom_fields. EPSS estimates a 0.95% chance of exploitation in the next 30 days, higher than 60.7% of scored vulnerabilities.
CVSS score
5.4/10
010
Medium · v3.0 (NVD)EPSS score
0.95%
0%100%
Low · -0.23 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 0 · Duplicates 1Timeline
- 22-08-2019PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
The advanced-custom-fields (aka Elliot Condon Advanced Custom Fields) plugin before 5.7.8 for WordPress has XSS by authors.
CVSS metrics
3 scores · 2 sources · 3 versionsMedium 5.4Preferred score · wordfence (Source)
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:NSourcesSingle source
Medium 5.4Preferred score · NVD (NIST)
CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:NSourcesSingle source
Low 3.5Preferred score · NVD (NIST)
AV:N/AC:M/Au:S/C:N/I:P/A:NSourcesSingle source
EPSS trend
Probability
0.95%
Chance of exploitation in the next 30 days
Percentile
61%
Versus all other CVEs
30-day change
-0.23 pp
From 1.18% on 21-09-2026
21-09-202621-10-2026
EPSS score0.95%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Advancedcustomfields1 product
- advanced_custom_fields< 5.7.8
Wordpress1 product
- advanced-custom-fields< 5.7.8
2 vendors · 2 products
References
5 links- www.advancedcustomfields.com/blog/acf-5-7-8-release/X Refsource CONFIRM
- www.advancedcustomfields.com/changelog/X Refsource CONFIRM