CVE-2020-2498

mediumpriority · track · 24EPSS 0.006 · 49 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.60% (49th) EPSS

CVSS 4.3 · medium

Is it mine?

14 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-27

If exploited, this cross-site scripting vulnerability could allow remote attackers to inject malicious code in certificate configuration. QANP have already fixed these vulnerabilities in the following versions of QTS and QuTS hero. QuTS hero h4.5.1.1472 build 20201031 and later QTS 4.5.1.1456 build 20201015 and later QTS 4.4.3.1354 build 20200702 and later QTS 4.3.6.1333 build 20200608 and later QTS 4.3.4.1368 build 20200703 and later QTS 4.3.3.1315 build 20200611 and later QTS 4.2.6 build 20200611 and later

cvss

Technical severity, 0–10. One row per scoring source.

6.1

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.04.3mediumAV:N/AC:M/Au:N/C:N/I:P/A:Nprimary · NVD / NIST USexploitability 8.6 · impact 2.9

v3.16.1mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:Nprimary · NVD / NIST USexploitability 2.8 · impact 2.7

v3.15.6mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-79USprimaryCWE-80US

affected products (14)

Products and version ranges known to be affected.

QNAP Systems Inc. QTS≤ < 4.3.6.1333enisa_euvdEU
QNAP Systems Inc. QTS≤ < 4.4.3.1354enisa_euvdEU
QNAP Systems Inc. QTS≤ < 4.3.3.1315enisa_euvdEU
QNAP Systems Inc. QTS≤ < 4.2.6enisa_euvdEU
QNAP Systems Inc. QTS≤ < 4.5.1.1456enisa_euvdEU
QNAP Systems Inc. QTS≤ < 4.3.4.1368enisa_euvdEU
QNAP Systems Inc. QuTS hero≤ < h4.5.1.1472enisa_euvdEU
qnap qts< 4.2.6nvdUScpe:2.3:o:qnap:qts:*:*:*:*:*:*:*:*
qnap qts< 4.3.3.1315nvdUScpe:2.3:o:qnap:qts:*:*:*:*:*:*:*:*
qnap qts< 4.3.4.1368nvdUScpe:2.3:o:qnap:qts:*:*:*:*:*:*:*:*
qnap qts< 4.3.6.1333nvdUScpe:2.3:o:qnap:qts:*:*:*:*:*:*:*:*
qnap qts< 4.4.3.1354nvdUScpe:2.3:o:qnap:qts:*:*:*:*:*:*:*:*
qnap qts< 4.5.1.1456nvdUScpe:2.3:a:qnap:qts:*:*:*:*:*:*:*:*
qnap quts hero< h4.5.1.1472nvdUScpe:2.3:o:qnap:quts_hero:*:*:*:*:*:*:*:*

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd NVD CVE.org MITRE

published 2020-12-10modified 2026-06-17

related (53,013)

Related entries.

ID	severity	EPSS	exploitable	published
CVE-2026-42897US	medium6.1OT critical	70.7% (99th)	KEV	2026-05-14
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Exchange Server allows an unauthorized attacker to perform spoofing over a network…
CVE-2025-66376US	medium6.1OT critical	20.2% (97th)	KEV	2026-01-05
Zimbra Collaboration (ZCS) 10 before 10.0.18 and 10.1 before 10.1.13 allows Classic UI stored XSS via Cascading Style Sheets (CSS) @import directives in an HTML e-mail message.
CVE-2025-68461US	medium6.1OT critical	27.4% (98th)	KEV	2025-12-18
Roundcube Webmail before 1.5.12 and 1.6 before 1.6.12 is prone to a Cross-Site-Scripting (XSS) vulnerability via the animate tag in an SVG document.
CVE-2025-48700US	—OT critical	1.71% (77th)	KEV	2025-06-23
An issue was discovered in Zimbra Collaboration (ZCS) 8.8.15 and 9.0 and 10.0 and 10.1. A Cross-Site Scripting (XSS) vulnerability in the Zimbra Classic UI allows attackers to exec…
CVE-2025-27915US	—OT critical	4.06% (91st)	KEV	2025-03-12
An issue was discovered in Zimbra Collaboration (ZCS) 9.0 and 10.0 and 10.1. A stored cross-site scripting (XSS) vulnerability exists in the Classic Web Client due to insufficient…

+53008 more

references (4)

External citations — patches, advisories, analysis.

scry

Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.

Free scan