What is CVE-2023-30148?

CVE-2023-30148 is a medium-severity vulnerability in Store-Opart Multi HTML Block, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2023-10-14.

How severe is CVE-2023-30148?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Store-Opart Multi HTML Block

CVE-2023-30148

Multiple Stored Cross Site Scripting (XSS) vulnerabilities in Opart opartmultihtmlblock before version 2.0.12 and Opart multihtmlblock* version 1.0.0, allows remote authenticated users to inject arbitrary web script or HTML via the body_text or body_text_rude field in /sourcefiles/BlockhtmlClass.php and /sourcefiles/blockhtml.php.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2023-10-14 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:N.

EPSS exploit prediction

EPSS: 0.004 (30.9th percentile), scored 2026-10-05.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 31st percentile — 30.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Store-Opart Multi HTML Block

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

security.friendsofpresta.org/modules/2023/10/10/opartmultihtmlblock.html (Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2023-30148?: CVE-2023-30148 is a medium-severity vulnerability in Store-Opart Multi HTML Block, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2023-10-14.
How severe is CVE-2023-30148?: Medium severity. CVSS v3 base score is 6.1 out of 10.