CVE-2024-21838

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-03-05 · updated 2026-06-17
Weakness: CWE-74

Description

Improper neutralization of special elements in output (CWE-74) used by the email generation feature of the Command Centre Server could lead to HTML code injection in emails generated by Command Centre. This issue affects: Gallagher Command Centre 9.00 prior to vEL9.00.1774 (MR2), 8.90 prior to vEL8.90.1751 (MR3), 8.80 prior to vEL8.80.1526 (MR4), 8.70 prior to vEL8.70.2526 (MR6), all version of 8.60 and prior.

Affected products

Gallagher Command Centre: through 8.60; from 8.70 before 8.70.2526; from 8.80 before 8.80.1526; from 8.90 before 8.90.1751; from 9.00 before 9.00.1774 — fixed in 8.70.2526, 8.80.1526, 8.90.1751, 9.00.1774

How to fix

Upgrade to a fixed version: Gallagher Command Centre 8.70.2526, 8.80.1526, 8.90.1751, 9.00.1774. Check the vendor advisory for mitigations.

References

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