CVE-2024-21838

MEDIUM

5.4

CVSS Score

Published: March 5, 2024 at 03:11 AM UTC

Updated: June 17, 2026 at 07:10 AM UTC

1 product affected across 1 vendorCommand Centre

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Severity

MEDIUM5.4

Exploit prediction

EPSS 0.3%

SSVC

No known exploit

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Command Centre · Gallagher

95%

v ≤ 8.608.70 ≤ v < 8.70.25268.70 ≤ v < vEL8.70.25268.80 ≤ v < 8.80.15268.80 ≤ v < vEL8.80.1526 (MR4)8.90 ≤ v < 8.90.17518.90 ≤ v < vEL8.90.1751 (MR3)9.00 ≤ v < 9.00.17749.00 ≤ v < vEL9.00.1774 (MR2)8.70 8.80 8.90 9.00

Affected range stops below 8.70.2526, so it looks safe — our inference, not a vendor statement

Affected range stops below 8.80.1526, so it looks safe — our inference, not a vendor statement

Affected range stops below 8.90.1751, so it looks safe — our inference, not a vendor statement

Affected range stops below 9.00.1774, so it looks safe — our inference, not a vendor statement

Affected range stops below vEL8.70.2526, so it looks safe — our inference, not a vendor statement

Affected range stops below vEL8.80.1526 (MR4), so it looks safe — our inference, not a vendor statement

Affected range stops below vEL8.90.1751 (MR3), so it looks safe — our inference, not a vendor statement

Affected range stops below vEL9.00.1774 (MR2), so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

https://security.gallagher.com/en-NZ/Security-Advisories/CVE-2024-21838

References (1)

Vendor Advisory

Source: [email protected]

https://security.gallagher.com/en-NZ/Security-Advisories/CVE-2024-21838

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.4MEDIUM[email protected]

Attack Vector: NETWORK
Complexity: LOW
Privileges: LOW
User Interaction: REQUIRED
Scope: CHANGED
Confidentiality: LOW
Integrity: LOW
Availability: NONE

Vector?

Quick Info

StatusANALYZED

CWE

CWE-74CWE-79

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