CVE-2018-20503 json
Allied Telesis 8100L/8 devices allow XSS via the edit-ipv4_interface.php vlanid or subnet_mask parameter.
published 2019-05-07 7 y ago modified 2026-06-17 4 mo ago also EUVD-2018-13057
- cvss
- 6.1
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 3.9%
- EPSS 3.9% chance of exploitation in 30 days, percentile 90%
- public exploits
- 1
- Exploit-DB
Summary
Allied Telesis 8100L/8 devices allow XSS via the edit-ipv4_interface.php vlanid or subnet_mask parameter.
Timeline
- First public exploit (EDB-46237)
- Published
Exploit prediction
3.90% chance of exploitation in the next 30 days, higher than 90% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- EDB-46237 SirsiDynix e-Library 3.5.x - Cross-Site Scripting webapps, 2019-01-24
- packetstormsecurity.com http://packetstormsecurity.com/files/151327/SirsiDynix-e-Library-3.5.x-Cross-Site-Scripting.html referenced PoC, tagged "exploit" by a source, unverified
- pentest.com.tr https://pentest.com.tr/exploits/Allied-Telesis-8100L-8-Cross-Site-Scripting.html referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 6.1 | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:N/I:P/A:N |
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
packetstormsecurity.com
/files/151327/SirsiDynix-e-Library-3.5.x-Cross-Site-Scripting.html
exploit, third-party-advisory, vdb-entry
-
exploit-db.com
/exploits/46237/
exploit, third-party-advisory, vdb-entry
-
pentest.com.tr
/exploits/Allied-Telesis-8100L-8-Cross-Site-Scripting.html
exploit, third-party-advisory
Sources
- CVE List CVE-2018-20503
- NVD CVE-2018-20503
Fencer Vulns 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.