How severe is CVE-2018-18909?

CVE-2018-18909 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-2018-18909 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-18909?

CVE-2018-18909 affects Xheditor. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-18909?

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

When was CVE-2018-18909 published?

CVE-2018-18909 was published on 2018-11-03 and last updated on 2026-06-17.

CVE-2018-18909

CVE-2018-18909 is a medium-severity vulnerability in Xheditor 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% (54th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Xheditor
Published: 2018-11-03
Last modified: 2026-06-17

Description

xhEditor 1.2.2 allows XSS via JavaScript code in the SRC attribute of an IFRAME element within the editor's source-code view.

Frequently asked questions

What is CVE-2018-18909?: xhEditor 1.2.2 allows XSS via JavaScript code in the SRC attribute of an IFRAME element within the editor's source-code view.
How severe is CVE-2018-18909?: CVE-2018-18909 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-2018-18909 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-18909?: CVE-2018-18909 affects Xheditor. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-18909?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-18909 published?: CVE-2018-18909 was published on 2018-11-03 and last updated on 2026-06-17.

References

https://github.com/yaniswang/xhEditor/issues/37

Affected products (1)

cpe:2.3:a:xheditor:xheditor:1.2.2:*:*:*:*:*:*:*

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