How severe is CVE-2018-20724?

CVE-2018-20724 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2018-20724 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-20724?

CVE-2018-20724 affects Cacti. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-20724?

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

When was CVE-2018-20724 published?

CVE-2018-20724 was published on 2019-01-16 and last updated on 2026-06-17.

CVE-2018-20724

CVE-2018-20724 is a medium-severity vulnerability in Cacti with a CVSS 3.x base score of 4.8. 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 4.8)
CVSS v2: 3.5
EPSS exploit prediction: 1% (59th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Cacti
Published: 2019-01-16
Last modified: 2026-06-17

Description

A cross-site scripting (XSS) vulnerability exists in pollers.php in Cacti before 1.2.0 due to lack of escaping of unintended characters in the Website Hostname for Data Collectors.

Frequently asked questions

What is CVE-2018-20724?: A cross-site scripting (XSS) vulnerability exists in pollers.php in Cacti before 1.2.0 due to lack of escaping of unintended characters in the Website Hostname for Data Collectors.
How severe is CVE-2018-20724?: CVE-2018-20724 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2018-20724 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-20724?: CVE-2018-20724 affects Cacti. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-20724?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-20724 published?: CVE-2018-20724 was published on 2019-01-16 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:cacti:cacti:*:*:*:*:*:*:*:*

More vulnerabilities in Cacti

CVE-2026-40079 — Critical (CVSS 9.8): Cacti is an open source performance and fault management framework. Versions 1.2.30 and prior are vulnerable to Command…
CVE-2026-39955 — Critical (CVSS 9.8): Cacti is an open source performance and fault management framework. Versions 1.2.30 and prior have pre-authentication…
CVE-2026-39948 — Critical (CVSS 9.8): Cacti is an open source performance and fault management framework. In versions 1.2.30 and prior, the rfilter request…
CVE-2026-39938 — Critical (CVSS 9.8): Cacti is an open source performance and fault management framework. Versions 1.2.30 and prior have unauthenticated LFI…
CVE-2026-39893 — Critical (CVSS 9.8): Cacti is an open source performance and fault management framework. In versions 1.2.30 and prior, the rfilter request…
CVE-2023-39361 — Critical (CVSS 9.8): Cacti is an open source operational monitoring and fault management framework. Affected versions are subject to a SQL…

All CVEs affecting Cacti →

Other CWE-79 (Cross-site Scripting (XSS)) vulnerabilities

CVE-2025-49410 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Imran Emu TC…
CVE-2024-47875 — Critical (CVSS 10.0): DOMPurify is a DOM-only, super-fast, uber-tolerant XSS sanitizer for HTML, MathML and SVG. DOMpurify was vulnerable to…
CVE-2024-6886 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Gitea…
CVE-2023-45144 — Critical (CVSS 10.0): com.xwiki.identity-oauth:identity-oauth-ui is a package to aid in building identity and service providers based on…
CVE-2023-45138 — Critical (CVSS 10.0): Change Request is an pplication allowing users to request changes on a wiki without publishing the changes directly.…
CVE-2022-4361 — Critical (CVSS 10.0): Keycloak, an open-source identity and access management solution, has a cross-site scripting (XSS) vulnerability in the…

Browse all CWE-79 (Cross-site Scripting (XSS)) vulnerabilities →