Vulnerability details
CVE-2026-48920
Jenkins Project Jenkins Email Extension Plugin
CVSS 3.1
8.8High
Official description
Jenkins Email Extension Plugin 1933.v45cec755423f and earlier allows inlining images as `base64` in email content by setting the `data-inline` attribute, without restrictions on the image URLs that can be inlined, allowing attackers able to control the email content to specify `file:` URLs for images to read arbitrary files from the Jenkins controller filesystem.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 8.8High | 3.1 | CISA ADP / Vulnrichment (CISA-ADP) | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Jenkins Project | Jenkins Email Extension Plugin | v ≤ 1933.v45cec755423f | CVEProject cvelistV5 (CNA) |
References and advisories
1
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Details
- Published
- 2026-05-27
- Last updated
- 2026-05-27
- State
- Published
- Assigner (CNA)
- jenkins
Exploit prediction (EPSS)
0.28%
Probability of exploitation in 30 days
21.3%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- CWE-73External Control of File Name or Path