# CVE-2013-20008: Linksys WAG200G weak password change mechanism

Source: https://junglewise.ai/threats/cve-2013-20008-linksys-wag200g-through-1-01-06-contains-a-weak-password-change  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-28. Updated: 2026-10-28  
License: CC BY 4.0 with a link back

CVE-2013-20008 · Severity: medium · CVSS 6.8 · Published 2026-10-28

The Linksys WAG200G is a home ADSL gateway and wireless router. An attacker with access to an authenticated administrator session can change the device's administrator password without entering the current password, allowing the attacker to lock out the legitimate administrator and maintain persistent control of the device.

Technologies: [Linksys WAG200G](https://junglewise.ai/threats/technologies/wag200g). Vendors: [Linksys](https://junglewise.ai/threats/vendors/linksys).

## Quick answers

**Is CVE-2013-20008 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2013-20008 being exploited in the wild.

**How severe is CVE-2013-20008?** Medium severity, with a CVSS score of 6.8, published 28 October 2026.

**Which products and versions are affected?** Linksys WAG200G through 1.01.06.

**Is there a fix for CVE-2013-20008?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2013-20008 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2013-20008?** Check whether you run Linksys WAG200G at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

The password change mechanism in the device's web interface fails to validate the current password before accepting a new one. An attacker with an authenticated browser session can send a POST request to /setup.cgi to change the administrator password without providing the existing password. This requires prior authentication or session hijacking, but once achieved grants persistent administrative control.

## Affected products

- Linksys WAG200G through 1.01.06

## Timeline

- 2013-02-08: disclosed
- 2012-10: other: Vulnerability discovered

## References

- [https://www.exploit-db.com/exploits/24476](https://www.exploit-db.com/exploits/24476)
- [https://www.s3cur1ty.de/m1adv2013-016](https://www.s3cur1ty.de/m1adv2013-016)

## Related threats

- [Linksys WAG200G stored cross-site scripting in policy_name](https://junglewise.ai/threats/cve-2013-20009-linksys-wag200g-through-1-01-06-contains-a-stored-cross-site)
- [Linksys WAG200G OS command injection in timer_interval](https://junglewise.ai/threats/cve-2013-20007-linksys-wag200g-through-1-01-06-contains-an-os-command-injection)