Serendipity

Germany Open Source s9y.org ↗
C
CAUTION
5
Total CVEs
1
Crit / High
1
Medium
67%
Unpatched
0%
Patched
7.0
Avg CVSS
0
CISA KEV
// Data sourced from NVD · CISA KEV · RHSA · GHSA · Debian · OSV · EPSS · Exploit-DB How we collect data →
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▸ CVE Trend by Year
▸ Patch Coverage
Patched
0%
Unpatched
67%
Under Review
33%
✓ 0 patched ✗ 2 unpatched ~ 1 under review
▸ Intelligence by Audience
PoC Available
0 / 20 shown
CISA KEV (Exploited)
0
Shodan Dorks
ssl:"serendipity" port:443
org:"Serendipity" http.status:200
Top EPSS (Exploitation Probability)
CVE-2023-53933 1.02% exploitation probability
CVE-2023-53932 0.24% exploitation probability
CVE-2026-73629 0.19% exploitation probability
Quick Facts for Reporting
Total CVEs tracked
5
Critical severity
0
Actively exploited (CISA)
0
Unpatched ratio
67%
Avg CVSS score
7.0
Security grade
C (CAUTION)
NVD Data Attribution
Source: NIST National Vulnerability Database (NVD) + GitHub Advisory Database.
Data aggregated by Valters IT Hub · valtersit.com
Last updated: 2026-07-30
Security Risk Score (for investors)
LOW
Vuln Volume
POOR
Patch Responsiveness
LOW
CISA Exposure
⚠ Not financial advice. Past security incidents do not guarantee future stock performance.
▸ Security News Google News

No recent security news found for Serendipity.

▸ Recent CVEs showing 20 of 3
CVE IDSeverityPatchEPSSDate
CVE-2026-73629 8.5 HIGH PATCH UNDER REVIEW 0.19% 2026-08-13
CVE-2023-53933 8.7 HIGH UNKNOWN / UNPATCHED 1.02% 2025-12-17
CVE-2023-53932 5.1 MEDIUM UNKNOWN / UNPATCHED 0.24% 2025-12-17
View all 3 CVEs for Serendipity →
▸Intel
CountryGermany
LicenseOpen Source
Trust ScoreC — CAUTION
Max CVSS7.2
Last Updated2026-07-30
▸Top Weaknesses
CWE-434
Unrestricted File Upload
2 occurrences in Serendipity CVEs (40% of total)
CWE-434 ⓘ
2
CWE-565
Unknown Weakness Type
1 occurrence in Serendipity CVEs (20% of total)
CWE-565 ⓘ
1
CWE-113
Unknown Weakness Type
1 occurrence in Serendipity CVEs (20% of total)
CWE-113 ⓘ
1
CWE-79
Cross-Site Scripting (XSS)
1 occurrence in Serendipity CVEs (20% of total)
CWE-79 ⓘ
1
▸Company Profile

Serendipity is an open-source blogging and content management system written in PHP, used primarily by individual bloggers and small websites. With only 5 tracked CVEs, it is a low-risk platform but still requires regular security updates.

▸Response Metrics
Est. MTTR ⓘ ~500 days (Critical)
Mean Time To Remediate. Estimates days from CVE disclosure to patch.
Industry avg: ~60d (good) · 100-300d (poor) · 300d+ (critical)
CVE Trend ⓘ ↘ -33% better
CVE count 2026 vs 2025:  3 → 2 CVEs
Patch Speed ⓘ Average (40–65%)
67% of CVEs still unpatched.  Excellent: <20% · Good: 20-40% · Avg: 40-65% · Poor: >65%
▸ Financial Risk Estimate
Est. GDPR Low
€360K
Est. GDPR High
€3.6M

Based on 0 critical CVEs, 0 CISA KEV, 60% unpatched. Model: GDPR Art.83 · not legal advice.

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