How severe is CVE-2018-18373?

CVE-2018-18373 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-2018-18373 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-18373?

CVE-2018-18373 affects Schiocco Support Board - Chat And Help Desk. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-18373?

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

When was CVE-2018-18373 published?

CVE-2018-18373 was published on 2018-10-17 and last updated on 2026-06-17.

CVE-2018-18373

CVE-2018-18373 is a medium-severity vulnerability in Schiocco Support Board - Chat And Help Desk 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% (52nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Schiocco Support Board - Chat And Help Desk
Published: 2018-10-17
Last modified: 2026-06-17

Description

In the Schiocco "Support Board - Chat And Help Desk" plugin 1.2.3 for WordPress, a Stored XSS vulnerability has been discovered in file upload areas in the Chat and Help Desk sections via the msg parameter in a /wp-admin/admin-ajax.php sb_ajax_add_message action.

Frequently asked questions

What is CVE-2018-18373?: In the Schiocco "Support Board - Chat And Help Desk" plugin 1.2.3 for WordPress, a Stored XSS vulnerability has been discovered in file upload areas in the Chat and Help Desk sections via the msg parameter in a /wp-admin/admin-ajax.php sb_ajax_add_message action.
How severe is CVE-2018-18373?: CVE-2018-18373 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-2018-18373 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-18373?: CVE-2018-18373 affects Schiocco Support Board - Chat And Help Desk. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-18373?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-18373 published?: CVE-2018-18373 was published on 2018-10-17 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:schiocco:support_board_-_chat_and_help_desk:1.2.3:*:*:*:*:wordpress:*:*

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