How severe is CVE-2018-18845?

CVE-2018-18845 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-2018-18845 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-18845?

CVE-2018-18845 affects Advanced Comment System Project Advanced Comment System. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-18845?

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

When was CVE-2018-18845 published?

CVE-2018-18845 was published on 2019-03-21 and last updated on 2026-06-17.

CVE-2018-18845

CVE-2018-18845 is a medium-severity vulnerability in Advanced Comment System Project Advanced Comment System 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% (70th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Advanced Comment System Project Advanced Comment System
Published: 2019-03-21
Last modified: 2026-06-17

Description

internal/advanced_comment_system/index.php and internal/advanced_comment_system/admin.php in Advanced Comment System, version 1.0, contain a reflected cross-site scripting vulnerability via ACS_path. A remote unauthenticated attacker could potentially exploit this vulnerability to supply malicious HTML or JavaScript code to a vulnerable web application, which is then reflected back to the victim and executed by the web browser. The product is discontinued.

Frequently asked questions

What is CVE-2018-18845?: internal/advanced_comment_system/index.php and internal/advanced_comment_system/admin.php in Advanced Comment System, version 1.0, contain a reflected cross-site scripting vulnerability via ACS_path. A remote unauthenticated attacker could potentially exploit this vulnerability to supply malicious HTML or JavaScript code to a vulnerable web application, which is then reflected back to the victim and executed by the web browser. The product is discontinued.
How severe is CVE-2018-18845?: CVE-2018-18845 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-2018-18845 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-18845?: CVE-2018-18845 affects Advanced Comment System Project Advanced Comment System. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-18845?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-18845 published?: CVE-2018-18845 was published on 2019-03-21 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:advanced_comment_system_project:advanced_comment_system:1.0:*:*:*:*:*:*:*

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