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01 Record

CVE-2024-21838

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

MediumPUBLISHEDCNA: Gallagher
CNA base score6.8 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:H/A:N

02 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

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.30% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 22.9% of scored records. A rank, not a probability.
NVD base score
5.4 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
NVD analysis status
Analyzed. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2024-03-05 03:11Z2 YR AGO
Last updated
2024-08-01 22:27Z2 YR AGO
Reserved
2024-02-05
Assigning CNA
Gallagher
Record state
PUBLISHED
Severity
Medium (CVSS 6.8)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:H/A:N
Weaknesses
  • CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')Class
  • CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')Base
Data version
5.1
Document digest
bcd56846bafcb967c223ff69c57c2a2c1f77bd38616b9da8f6f9c6f867cc8a68

05 Affected products

VendorProductVersionsPlatforms
GallagherCommand Centre Server0 to 8.60, 9.00 to < vEL9.00.1774 (MR2), 8.90 to < vEL8.90.1751 (MR3), 8.80 to < vEL8.80.1526 (MR4), 8.70 to < vEL8.70.2526—

06 References