CVE-2017-8838 json
XSS via syncid exists on Peplink Balance 305, 380, 580, 710, 1350, and 2500 devices with firmware before fw-b305hw2_380hw6_580hw2_710hw3_13…
published 2017-06-05 9 y ago modified 2026-06-17 4 mo ago also EUVD-2017-17780
- cvss
- 6.1
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.8%
- EPSS 1.8% chance of exploitation in 30 days, percentile 78%
- public exploits
- 1
- Exploit-DB
Summary
XSS via syncid exists on Peplink Balance 305, 380, 580, 710, 1350, and 2500 devices with firmware before fw-b305hw2_380hw6_580hw2_710hw3_1350hw2_2500-7.0.1-build2093. The affected script is cgi-bin/HASync/hasync.cgi.
Patch / fix
Timeline
- Published
- First public exploit (EDB-42130)
Exploit prediction
1.79% chance of exploitation in the next 30 days, higher than 78% of all scored CVEs (FIRST EPSS, 2026-11-09).
Exploits and checks
- EDB-42130 Peplink Balance Routers 7.0.0-build1904 - SQL Injection / Cross-Site Scripting / Information Disclosure webapps, 2017-06-06
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
-
x41-dsec.de
/lab/advisories/x41-2017-005-peplink/
patch, third-party-advisory
-
exploit-db.com
/exploits/42130/
exploit
-
seclists.org
/bugtraq/2017/Jun/1
mailing-list, third-party-advisory
Sources
- CVE List CVE-2017-8838
- NVD CVE-2017-8838
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.