What is CVE-2018-19956?

CVE-2018-19956 is a medium-severity vulnerability in QNAP Photo Station, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2020-11-02.

How severe is CVE-2018-19956?

Medium severity. CVSS v3 base score is 6.1 out of 10.

Is CVE-2018-19956 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in QNAP Photo Station

CVE-2018-19956

The cross-site scripting vulnerability has been reported to affect earlier versions of Photo Station. If exploited, the vulnerability could allow remote attackers to inject malicious code. This issue affects: QNAP Systems Inc. Photo Station versions prior to 5.7.11; versions prior to 6.0.10.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2020-11-02 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.009 (58.6th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 59th percentile — 58.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000

Affected products

QNAP Photo Station
QNAP Systems Inc. Photo Station — versions unspecified

Weakness classification (CWE)

Public proof-of-concept exploits

References

www.qnap.com/en/security-advisory/qsa-20-11 (Vendor Advisory)

Frequently asked questions

What is CVE-2018-19956?: CVE-2018-19956 is a medium-severity vulnerability in QNAP Photo Station, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2020-11-02.
How severe is CVE-2018-19956?: Medium severity. CVSS v3 base score is 6.1 out of 10.
Is CVE-2018-19956 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.