CVE-2018-19274

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

5.20% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 92.2% of scored records. A rank, not a probability.

NVD base score

7.2 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

NVD analysis status

Modified. 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.

Published

2018-11-17 13:00Z7 YR AGO

Last updated

2024-08-05 11:30Z2 YR AGO

Reserved

2018-11-14

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-502Deserialization of Untrusted DataBase
• CWE-1321Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')Variant

Data version

5.1

Document digest

0c48cfe350e73ae18578865d647e7241f73fb6272fbcd41a197107db3f43952f

• blog.ripstech.comhttps://blog.ripstech.com/2018/phpbb3-phar-deserialization-to-remote-code-execution/x_refsource_MISC
• www.phpbb.comhttps://www.phpbb.com/community/viewtopic.php?f=14&t=2492206x_refsource_CONFIRM
• lists.debian.org[debian-lts-announce] 20181124 [SECURITY] [DLA 1593-1] phpbb3 security updatehttps://lists.debian.org/debian-lts-announce/2018/11/msg00029.htmlmailing-listx_refsource_MLIST