How severe is CVE-2014-3877?

CVE-2014-3877 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2014-3877 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2014-3877?

CVE-2014-3877 affects Ulli Horlacher Fex. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2014-3877?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2014-3877 published?

CVE-2014-3877 was published on 2014-06-18 and last updated on 2026-06-17.

CVE-2014-3877

CVE-2014-3877 is a medium-severity vulnerability in Ulli Horlacher Fex with a CVSS 2.0 base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 2.0 base score 4.3)
EPSS exploit prediction: 2% (77th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Ulli Horlacher Fex
Published: 2014-06-18
Last modified: 2026-06-17

Description

Incomplete blacklist vulnerability in Frams' Fast File EXchange (F*EX, aka fex) before fex-20140530 allows remote attackers to conduct cross-site scripting (XSS) attacks via the addto parameter to fup.

Frequently asked questions

What is CVE-2014-3877?: Incomplete blacklist vulnerability in Frams' Fast File EXchange (F*EX, aka fex) before fex-20140530 allows remote attackers to conduct cross-site scripting (XSS) attacks via the addto parameter to fup.
How severe is CVE-2014-3877?: CVE-2014-3877 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2014-3877 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2014-3877?: CVE-2014-3877 affects Ulli Horlacher Fex. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2014-3877?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2014-3877 published?: CVE-2014-3877 was published on 2014-06-18 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:ulli_horlacher:fex:*:*:*:*:*:*:*:*

More vulnerabilities in Ulli Horlacher Fex

CVE-2014-3875 — Medium (CVSS 6.1): The addto parameter to fup in Frams' Fast File EXchange (F*EX, aka fex) before fex-2014053 allows remote attackers to…
CVE-2011-1409 — Medium (CVSS 5.0): Frams's Fast File EXchange (F*EX, aka fex) 20100208, and possibly other versions before 20110610, allows remote…
CVE-2014-3876 — Medium (CVSS 4.3): Multiple cross-site scripting (XSS) vulnerabilities in Frams' Fast File EXchange (F*EX, aka fex) before fex-20140530…
CVE-2012-1293 — Medium (CVSS 4.3): Multiple cross-site scripting (XSS) vulnerabilities in fup in Frams' Fast File EXchange (F*EX, aka fex) before…
CVE-2012-0869 — Medium (CVSS 4.3): Cross-site scripting (XSS) vulnerability in fup in Frams' Fast File EXchange (F*EX, aka fex) before 20120215 allows…

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