CVE-2023-31576
CVE-2023-31576 is a high-severity vulnerability in S9y Serendipity with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-434.
Key facts
- Severity: High (CVSS 3.x base score 8.8)
- EPSS exploit prediction: 1% (61st percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-434
- Affected product: S9y Serendipity
- Published:
- Last modified:
Description
An arbitrary file upload vulnerability in Serendipity 2.4-beta1 allows attackers to execute arbitrary code via a crafted HTML or Javascript file.
Frequently asked questions
- What is CVE-2023-31576?
- An arbitrary file upload vulnerability in Serendipity 2.4-beta1 allows attackers to execute arbitrary code via a crafted HTML or Javascript file.
- How severe is CVE-2023-31576?
- CVE-2023-31576 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2023-31576 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2023-31576?
- CVE-2023-31576 affects S9y Serendipity. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2023-31576?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2023-31576 published?
- CVE-2023-31576 was published on 2023-05-16 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:s9y:serendipity:2.4.0:beta1:*:*:*:*:*:*
More vulnerabilities in S9y Serendipity
- CVE-2005-1449 — Critical (CVSS 10.0): Unknown vulnerability in serendipity_config_local.inc.php for Serendipity before 0.8 has unknown impact.
- CVE-2005-1452 — Critical (CVSS 10.0): Serendipity before 0.8 allows Chief users to "hide plugins installed by other users."
- CVE-2020-10964 — Critical (CVSS 9.8): Serendipity before 2.3.4 on Windows allows remote attackers to execute arbitrary code because the filename of a renamed…
- CVE-2011-1134 — Critical (CVSS 9.8): Cross-Site Scripting (XSS) in Xinha, as included in the Serendipity package before 1.5.5, allows remote attackers to…
- CVE-2016-10752 — Critical (CVSS 9.8): serendipity_moveMediaDirectory in Serendipity 2.0.3 allows remote attackers to upload and execute arbitrary PHP code…
- CVE-2016-10082 — Critical (CVSS 9.8): include/functions_installer.inc.php in Serendipity through 2.0.5 is vulnerable to File Inclusion and a possible Code…
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Other CWE-434 (Unrestricted Upload of File with Dangerous Type) vulnerabilities
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- CVE-2026-48276 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Unrestricted Upload of File with Dangerous Type…
- CVE-2026-57700 — Critical (CVSS 10.0): Unrestricted Upload of File with Dangerous Type vulnerability in Daan.Dev OMGF Pro allows Using Malicious Files. This…
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- CVE-2026-40772 — Critical (CVSS 10.0): Unauthenticated Arbitrary File Upload in GeekyBot <= 1.2.2 versions.
- CVE-2026-40412 — Critical (CVSS 10.0): Unrestricted upload of file with dangerous type in Azure Orbital Spatio allows an unauthorized attacker to execute code…
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