CVE-2026-39491: WordPress JupiterX Core plugin <= 4.14.1 - Cross Site Scripting (XSS) vulnerability
Deferred
Published 15-06-2026Last modified 16-06-2026
Vulnerability summary
CVE-2026-39491 is a medium (CVSS 6.5) Cross-site Scripting vulnerability in artbees jupiterx core. EPSS estimates a 0.23% chance of exploitation in the next 30 days, higher than 13.6% of scored vulnerabilities.
CVSS score
6.5/10
010
Medium · v3.1 (CVE.org)EPSS score
0.23%
0%100%
Low · +0.01 pp in 30 daysKEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded
Timeline
- 15-06-2026PublishedVulnerability first disclosed.
- 16-06-2026Last modifiedVulnerability information updated.
Description
Subscriber Cross Site Scripting (XSS) in JupiterX Core <= 4.14.1 versions.
CVSS metrics
3 scores · 3 sources · 1 versionMedium 6.5Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:LSources3 sources · 6.4–6.5
- NVDNIST6.5MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L
- wordfenceSource6.4MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:NDiffers
EPSS trend
Probability
0.23%
Chance of exploitation in the next 30 days
Percentile
14%
Versus all other CVEs
30-day change
Increase +0.01 pp
From 0.22% on 27-09-2026
27-09-202627-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Artbees1 product
- jupiterx core≥ n/a, ≤ 4.14.1
Wordpress1 product
- jupiterx-core≤ 4.14.1 (fixed in 4.14.2)
2 vendors · 2 products
References
2 links- patchstack.com/database/…VDB Entry