How severe is CVE-2015-4656?

CVE-2015-4656 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2015-4656 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-4656?

CVE-2015-4656 affects Synology Photo Station. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2015-4656?

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

When was CVE-2015-4656 published?

CVE-2015-4656 was published on 2015-06-18 and last updated on 2026-06-17.

CVE-2015-4656

CVE-2015-4656 is a medium-severity vulnerability in Synology Photo Station 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. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 2.0 base score 4.3)
EPSS exploit prediction: 1% (66th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Synology Photo Station
Published: 2015-06-18
Last modified: 2026-06-17

Description

Multiple cross-site scripting (XSS) vulnerabilities in Synology Photo Station before 6.3-2945 allow remote attackers to inject arbitrary web script or HTML via the (1) success parameter to login.php or (2) crafted URL parameters to index.php, as demonstrated by the t parameter to photo/.

Frequently asked questions

What is CVE-2015-4656?: Multiple cross-site scripting (XSS) vulnerabilities in Synology Photo Station before 6.3-2945 allow remote attackers to inject arbitrary web script or HTML via the (1) success parameter to login.php or (2) crafted URL parameters to index.php, as demonstrated by the t parameter to photo/.
How severe is CVE-2015-4656?: CVE-2015-4656 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2015-4656 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-4656?: CVE-2015-4656 affects Synology Photo Station. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2015-4656?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2015-4656 published?: CVE-2015-4656 was published on 2015-06-18 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:synology:photo_station:*:*:*:*:*:*:*:*

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