CVE-2026-39516: posimyth nexter_blocks
CVSS: 5.3v3.1MediumDeferred
Published 08-04-2026Last modified 29-04-2026
Vulnerability summary
CVE-2026-39516 is a medium (CVSS 5.3) vulnerability in posimyth nexter_blocks. EPSS estimates a 0.33% chance of exploitation in the next 30 days, higher than 24.8% of scored vulnerabilities.
CVSS score
5.3/10
010
Medium · v3.1 (CVE.org)EPSS score
0.33%
0%100%
Low · +0.09 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 08-04-2026PublishedVulnerability first disclosed.
- 29-04-2026Last modifiedVulnerability information updated.
Description
Exposure of Sensitive System Information to an Unauthorized Control Sphere vulnerability in POSIMYTH Nexter Blocks the-plus-addons-for-block-editor allows Retrieve Embedded Sensitive Data.This issue affects Nexter Blocks: from n/a through <= 4.7.0.
CVSS metrics
3 scores · 3 sources · 1 versionMedium 5.3Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:NSourcesAll 3 agree
- NVDNIST5.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- wordfenceSource5.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
EPSS trend
Probability
0.33%
Chance of exploitation in the next 30 days
Percentile
25%
Versus all other CVEs
30-day change
+0.09 pp
From 0.24% on 21-09-2026
21-09-202621-10-2026
EPSS score0.33%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-497Exposure of Sensitive System Information to an Unauthorized Control SphereThe product does not properly prevent sensitive system-level information from being accessed by unauthorized actors who do not have the same level of access to the underlying system as the product does.
- CWE-200Exposure of Sensitive Information to an Unauthorized ActorThe product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.
Affected systems
Posimyth1 product
- nexter_blocks≤ 4.7.0
Wordpress1 product
- the-plus-addons-for-block-editor≤ 4.7.0 (fixed in 4.7.1)
2 vendors · 2 products
References
2 links- patchstack.com/database/…VDB Entry