CVE-2026-87821 json
Lara Dashboard 0.9.2 through 1.3.1 Server-Side Request Forgery in Builder Markdown Fetch
published 2mo ago modified 2mo ago also EUVD-2026-74847 , GHSA-4xqv-4c27-6c4j , GHSA-f36j-h77g-6wj8
Unreviewed: the maintainers' own advisory
Published by the maintainers on their GitHub repository laradashboard/laradashboard. GitHub has not reviewed it into the GitHub Advisory Database, so the affected packages and versions are the maintainers' word. Read the full advisory on GitHub.
- cvss
- 7.1
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 41%
- public exploits
- 0
- none known
Summary
Lara Dashboard through 1.3.1 contains a server-side request forgery vulnerability in the POST /api/admin/builder/markdown/fetch endpoint that allows any authenticated user to fetch arbitrary URLs and read the response body. Attackers can read internal HTTP services and cloud metadata including IAM credentials by supplying malicious URLs without host validation or redirect restrictions.
Patch / fix
- laradashboard laradashboard 1.3.2
Is CVE-2026-87821 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerCISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2mo ago
Exploit prediction
0.47% chance of exploitation in the next 30 days, higher than 41% of all scored CVEs (FIRST EPSS, 2026-11-11).
Exploits and checks
- github.com https://github.com/laradashboard/laradashboard/security/advisories/GHSA-4xqv-4c27-6c4j referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N |
| CNA | 4.0 | 7.1 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N |
| CNA | 4.0 | 7.1 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
Affected products
- laradashboard laradashboard
Classification
- Weakness
-
- CWE-918 Server-Side Request Forgery
References
-
github.com
/laradashboard/laradashboard/commit/738cc1a219ce459323ef1d09c3789075f1b8d2f2
patch
-
github.com
/laradashboard/laradashboard/security/advisories/GHSA-4xqv-4c27-6c4j
vendor-advisory, exploit, advisory
-
github.com
/laradashboard/laradashboard/security/advisories/GHSA-f36j-h77g-6wj8
vendor-advisory, advisory
-
github.com
/laradashboard/laradashboard/blob/v1.3.1/app/Services/Builder/MarkdownFetchService.php
technical-description
-
github.com
/laradashboard/laradashboard/blob/v0.9.2/app/Services/Builder/MarkdownFetchService.php
technical-description
-
github.com
/laradashboard/laradashboard/blob/v1.3.1/app/Http/Controllers/Api/Builder/MarkdownController.php
technical-description
-
github.com
/laradashboard/laradashboard/blob/v1.3.2/app/Support/Security/SafeUrlValidator.php
technical-description
-
github.com
/laradashboard/laradashboard/releases/tag/v1.3.2
release-notes
-
github.com
/laradashboard/laradashboard
product
-
vulncheck.com
/advisories/lara-dashboard-0.9.2-through-1.3.1-server-side-request-forgery-in-builder-markdown-fetch
third-party-advisory
Sources
- CVE List CVE-2026-87821
- NVD CVE-2026-87821
- Maintainer advisory GHSA-4xqv-4c27-6c4j
- Maintainer advisory GHSA-f36j-h77g-6wj8
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
The maintainers of laradashboard/laradashboard published their own advisory on GitHub. Reviewed sources take precedence over it.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.