How severe is CVE-2017-20248?

CVE-2017-20248 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2017-20248 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2017-20248?

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.

Does CVE-2017-20248 have an EU (EUVD) identifier?

Yes. CVE-2017-20248 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2017-18974.

When was CVE-2017-20248 published?

CVE-2017-20248 was published on 2026-06-09 and last updated on 2026-06-17.

CVE-2017-20248

CVE-2017-20248 is a high-severity vulnerability with a CVSS 3.x base score of 7.5. 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-22.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v4: 8.7
EPSS exploit prediction: 1% (46th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2017-18974
Weakness: CWE-22
Published: 2026-06-09
Last modified: 2026-06-17

Description

Apptha Slider Gallery 1.0 contains a path traversal vulnerability that allows unauthenticated attackers to download arbitrary files by manipulating the imgname parameter. Attackers can send requests to asgallDownload.php with directory traversal sequences ../ to access sensitive files outside the intended directory.

Frequently asked questions

What is CVE-2017-20248?: Apptha Slider Gallery 1.0 contains a path traversal vulnerability that allows unauthenticated attackers to download arbitrary files by manipulating the imgname parameter. Attackers can send requests to asgallDownload.php with directory traversal sequences ../ to access sensitive files outside the intended directory.
How severe is CVE-2017-20248?: CVE-2017-20248 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2017-20248 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2017-20248?: 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.
Does CVE-2017-20248 have an EU (EUVD) identifier?: Yes. CVE-2017-20248 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2017-18974.
When was CVE-2017-20248 published?: CVE-2017-20248 was published on 2026-06-09 and last updated on 2026-06-17.

References

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