CVE-2026-48909

SP LMS (com_splms) < 4.1.4 by JoomShaper deserializes user-controlled cookie data without validation, enabling an unauthenticated remote attacker to execute arbitrary code on the server.

CVSS v4.0

9.5 CRITICALCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS

4.94% chance of exploitation in the next 30 days, 92th percentile

Nuclei

critical · CWE-502

Published

2026-06-20

Updated

2026-06-23

Proof-of-concept exploits (2)

• Is4yev/CVE-2026-4890923★ · 2026-07-07
• CerberusMrXi/CVE-2026-48909-Joomla-SP-Exploit

Nuclei templates (1)

• projectdiscovery/nuclei-templates/blob/main/javascript/cves/2026/CVE-2026-48909.yaml

ExploitDB entries (1)

• https://www.exploit-db.com/exploits/52617

References

• CVE Record
• NVD entry

Related

• CVE-2026-57829
• CVE-2026-57830
• CVE-2020-5504
• CVE-2021-44790
• CVE-2023-44487
• CVE-2024-25600