How severe is CVE-2018-18291?

CVE-2018-18291 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2018-18291 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-18291?

CVE-2018-18291 affects Asus Rt-ac58u Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-18291?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2018-18291 published?

CVE-2018-18291 was published on 2018-10-14 and last updated on 2026-06-17.

CVE-2018-18291

CVE-2018-18291 is a medium-severity vulnerability in Asus Rt-ac58u Firmware with a CVSS 3.x base score of 6.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
CVSS v2: 4.3
EPSS exploit prediction: 1% (56th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Asus Rt-ac58u Firmware
Published: 2018-10-14
Last modified: 2026-06-17

Description

A cross site scripting (XSS) vulnerability on ASUS RT-AC58U 3.0.0.4.380_6516 devices allows remote attackers to inject arbitrary web script or HTML via Advanced_ASUSDDNS_Content.asp, Advanced_WSecurity_Content.asp, Advanced_Wireless_Content.asp, Logout.asp, Main_Login.asp, MobileQIS_Login.asp, QIS_wizard.htma, YandexDNS.asp, ajax_status.xml, apply.cgi, clients.asp, disk.asp, disk_utility.asp, or internet.asp.

Frequently asked questions

What is CVE-2018-18291?: A cross site scripting (XSS) vulnerability on ASUS RT-AC58U 3.0.0.4.380_6516 devices allows remote attackers to inject arbitrary web script or HTML via Advanced_ASUSDDNS_Content.asp, Advanced_WSecurity_Content.asp, Advanced_Wireless_Content.asp, Logout.asp, Main_Login.asp, MobileQIS_Login.asp, QIS_wizard.htma, YandexDNS.asp, ajax_status.xml, apply.cgi, clients.asp, disk.asp, disk_utility.asp, or internet.asp.
How severe is CVE-2018-18291?: CVE-2018-18291 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2018-18291 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-18291?: CVE-2018-18291 affects Asus Rt-ac58u Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-18291?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-18291 published?: CVE-2018-18291 was published on 2018-10-14 and last updated on 2026-06-17.

References

https://github.com/remix30303/AsusXSS/

Affected products (1)

cpe:2.3:o:asus:rt-ac58u_firmware:3.0.0.4.380.6516:*:*:*:*:*:*:*

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