Is CVE-2020-5574 actively exploited?

No active exploitation of CVE-2020-5574 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2020-5574 be exploited remotely?

Yes. CVE-2020-5574 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2020-5574?

CVE-2020-5574 has a CVSS score of 5.3 (MEDIUM).

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MEDIUM

CVE-2020-5574

CWE-74Published: May 14, 2020· Updated: Jun 17, 2026

5.3

CVSS v3.1

Official Description

HTML attribute value injection vulnerability in Movable Type series (Movable Type 7 r.4606 (7.2.1) and earlier (Movable Type 7), Movable Type Advanced 7 r.4606 (7.2.1) and earlier (Movable Type Advanced 7), Movable Type for AWS 7 r.4606 (7.2.1) and earlier (Movable Type for AWS 7), Movable Type 6.5.3 and earlier (Movable Type 6.5), Movable Type Advanced 6.5.3 and earlier (Movable Type Advanced 6.5), Movable Type 6.3.11 and earlier (Movable Type 6.3), Movable Type Advanced 6.3.11 and earlier (Movable Type 6.3), Movable Type Premium 1.29 and earlier, and Movable Type Premium Advanced 1.29 and earlier) allows remote attackers to inject arbitrary HTML attribute value via unspecified vectors.

NVD Source

Technical Analysis

CVE-2020-5574 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.