How severe is CVE-2018-18736?

CVE-2018-18736 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2018-18736 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-18736?

CVE-2018-18736 affects Catfish-cms Catfish Blog. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-18736?

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

When was CVE-2018-18736 published?

CVE-2018-18736 was published on 2018-10-29 and last updated on 2026-06-17.

CVE-2018-18736

CVE-2018-18736 is a medium-severity vulnerability in Catfish-cms Catfish Blog with a CVSS 3.x base score of 5.4. 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 5.4)
CVSS v2: 3.5
EPSS exploit prediction: 1% (42nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Catfish-cms Catfish Blog
Published: 2018-10-29
Last modified: 2026-06-17

Description

An XSS issue was discovered in catfish blog 2.0.33, related to "write source code."

Frequently asked questions

What is CVE-2018-18736?: An XSS issue was discovered in catfish blog 2.0.33, related to "write source code."
How severe is CVE-2018-18736?: CVE-2018-18736 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2018-18736 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-18736?: CVE-2018-18736 affects Catfish-cms Catfish Blog. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-18736?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-18736 published?: CVE-2018-18736 was published on 2018-10-29 and last updated on 2026-06-17.

References

https://github.com/AvaterXXX/catfish/blob/master/catfishblog.md#xss

Affected products (1)

cpe:2.3:a:catfish-cms:catfish_blog:2.0.33:*:*:*:*:*:*:*

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