How severe is CVE-2015-8747?

CVE-2015-8747 has a CVSS 3.x base score of 10.0, 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 none.

Is CVE-2015-8747 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-8747?

CVE-2015-8747 affects Radicale. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2015-8747?

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-2015-8747 published?

CVE-2015-8747 was published on 2016-02-03 and last updated on 2026-06-17.

CVE-2015-8747

CVE-2015-8747 is a critical-severity vulnerability in Radicale with a CVSS 3.x base score of 10.0. 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-20.

Key facts

Severity: Critical (CVSS 3.x base score 10.0)
CVSS v2: 7.5
EPSS exploit prediction: 3% (86th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Radicale
Published: 2016-02-03
Last modified: 2026-06-17

Description

The multifilesystem storage backend in Radicale before 1.1 allows remote attackers to read or write to arbitrary files via a crafted component name.

Frequently asked questions

What is CVE-2015-8747?: The multifilesystem storage backend in Radicale before 1.1 allows remote attackers to read or write to arbitrary files via a crafted component name.
How severe is CVE-2015-8747?: CVE-2015-8747 has a CVSS 3.x base score of 10.0, 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 none.
Is CVE-2015-8747 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-8747?: CVE-2015-8747 affects Radicale. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2015-8747?: 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-2015-8747 published?: CVE-2015-8747 was published on 2016-02-03 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:radicale:radicale:*:*:*:*:*:*:*:*

More vulnerabilities in Radicale

CVE-2016-1505 — Critical (CVSS 10.0): The filesystem storage backend in Radicale before 1.1 on Windows allows remote attackers to read or write to arbitrary…
CVE-2017-8342 — High (CVSS 8.1): Radicale before 1.1.2 and 2.x before 2.0.0rc2 is prone to timing oracles and simple brute-force attacks when using the…
CVE-2015-8748 — Medium (CVSS 5.3): Radicale before 1.1 allows remote authenticated users to bypass owner_write and owner_only limitations via regex…

All CVEs affecting Radicale →

Other CWE-20 (Improper Input Validation) vulnerabilities

CVE-2026-48056 — Critical (CVSS 10.0): Streambert is a cross-platform Electron Desktop App to stream and download video content. Versions prior to 2.5.0…
CVE-2026-33267 — Critical (CVSS 10.0): Improper Input Validation vulnerability in Apache Traffic Server. This issue affects Apache Traffic Server: from 9.2.0…
CVE-2026-47668 — Critical (CVSS 10.0): DbGate is cross-platform database manager. In versions 7.1.8 and prior, DbGate's JSON script runner (`POST…
CVE-2026-16117 — Critical (CVSS 10.0): Impact: @fastify/http-proxy versions up to and including 11.5.0 fail to rewrite the request prefix when the prefix…
CVE-2026-48316 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…
CVE-2026-48281 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…

Browse all CWE-20 (Improper Input Validation) vulnerabilities →