CVE-2020-25540
HighExploitedPublic exploitThinkAdmin directory traversal vulnerability
Published May 24, 2022 · Updated May 15, 2025 · Also known as GHSA-2qm5-r82g-5hcx
Key Facts
Patch immediately- CVE-2020-25540 is a high-severity vulnerability (CVSS 7.5 v3.1) affecting Thinkadmin, zoujingli/thinkadmin (composer).
- It is exploited in the wild, listed in Industry KEV feed, CIRCL KEV since Sep 14, 2020. Public exploit code is available.
- EPSS estimates a 75% probability of exploitation in the next 30 days.
- No fixed version is listed yet; check the vendor advisory for mitigations.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS (30-day exploit likelihood)
75%
Higher than 99.5% of all scored CVEs
Exploited in the wild
Yes
2 catalog listings
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2020-25540 brief as a PDF
Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.
Description
ThinkAdmin v6 is affected by a directory traversal vulnerability. An unauthorized attacker can read arbitrarily file on a remote server via GET request encode parameter.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| Industry KEV feed | Jul 21, 2024 | n/a | Not reported |
| CIRCL KEV | Sep 14, 2020 | n/a | Not reported |
Required action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
Affected Products
2 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| ThinkadminThinkadmin | 6.0 | n/a |
| zoujingli/thinkadmincomposer | >= 6.0 | n/a |
Timeline
Added to CIRCL KEV
Sep 14, 2020
Publicly disclosed
May 24, 2022
Added to Industry KEV feed
Jul 21, 2024
Last updated
May 15, 2025
Weakness Type
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
References
- advisoryhttp://packetstormsecurity.com/files/159177/ThinkAdmin-6-Arbitrary-File-Read.html
- advisoryGHSA advisory
- advisoryhttps://github.com/zoujingli/ThinkAdmin/commit/ff2ab47cfabd4784effbf72a2a386c5d25c43a9a
- advisoryhttps://nvd.nist.gov/vuln/detail/CVE-2020-25540
- advisoryhttps://wtfsec.org/posts/thinkadmin-v6-%E5%88%97%E7%9B%AE%E5%BD%95-%E4%BB%BB%E6%84%8F%E6%96%87%E4%BB%B6%E8%AF%BB%E5%8F%96
FAQ
Common Questions.
ThinkAdmin v6 is affected by a directory traversal vulnerability.
Affected: Thinkadmin versions 6.0; zoujingli/thinkadmin (composer) versions >= 6.0. The full list is in the CVE brief.
It is exploited in the wild, listed in Industry KEV feed, CIRCL KEV since Sep 14, 2020.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
Is CVE-2020-25540 Running On Your Attack Surface?
Brandefense maps vulnerabilities like this one to your internet-facing assets and tells you exactly where to patch.
Request A Demo