CVE-2019-13973
CVE-2019-13973 is a critical-severity vulnerability in Layerbb with a CVSS 3.x base score of 9.8. 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: Critical (CVSS 3.x base score 9.8)
- CVSS v2: 7.5
- EPSS exploit prediction: 2% (75th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-434
- Affected product: Layerbb
- Published:
- Last modified:
Description
LayerBB 1.1.3 allows admin/general.php arbitrary file upload because the custom_logo filename suffix is not restricted, and .php may be used.
Frequently asked questions
- What is CVE-2019-13973?
- LayerBB 1.1.3 allows admin/general.php arbitrary file upload because the custom_logo filename suffix is not restricted, and .php may be used.
- How severe is CVE-2019-13973?
- CVE-2019-13973 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2019-13973 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2019-13973?
- CVE-2019-13973 affects Layerbb. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2019-13973?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- When was CVE-2019-13973 published?
- CVE-2019-13973 was published on 2019-07-19 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:layerbb:layerbb:1.1.3:*:*:*:*:*:*:*
More vulnerabilities in Layerbb
- CVE-2018-17988 — Critical (CVSS 9.8): LayerBB 1.1.1 and 1.1.3 has SQL Injection via the search.php search_query parameter.
- CVE-2019-16531 — High (CVSS 8.8): LayerBB before 1.1.4 has multiple CSRF issues, as demonstrated by changing the System Settings via admin/general.php.
- CVE-2019-13974 — High (CVSS 8.8): LayerBB 1.1.3 allows conversations.php/cmd/new CSRF.
- CVE-2018-17996 — Medium (CVSS 6.5): LayerBB before 1.1.3 allows CSRF for adding a user via admin/new_user.php, deleting a user via…
- CVE-2019-13972 — Medium (CVSS 6.1): LayerBB 1.1.3 allows XSS via the application/commands/new.php pm_title variable, a related issue to CVE-2019-17997.
- CVE-2018-17997 — Medium (CVSS 6.1): LayerBB 1.1.1 allows XSS via the titles of conversations (PMs).
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- CVE-2026-40772 — Critical (CVSS 10.0): Unauthenticated Arbitrary File Upload in GeekyBot <= 1.2.2 versions.
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