How severe is CVE-2018-5303?

CVE-2018-5303 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2018-5303 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-5303?

CVE-2018-5303 affects Impinj R420 Rfid Reader Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-5303?

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

When was CVE-2018-5303 published?

CVE-2018-5303 was published on 2018-05-11 and last updated on 2026-06-17.

CVE-2018-5303

CVE-2018-5303 is a medium-severity vulnerability in Impinj R420 Rfid Reader Firmware with a CVSS 3.x base score of 5.4. 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 3.x base score 5.4)
CVSS v2: 3.5
EPSS exploit prediction: 1% (41st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Impinj R420 Rfid Reader Firmware
Published: 2018-05-11
Last modified: 2026-06-17

Description

An issue was discovered on the Impinj Speedway Connect R420 RFID Reader before 2.2.2. The license key parameter of the web application is vulnerable to Cross Site Scripting; this vulnerability allows an attacker to send malicious code to another user.

Frequently asked questions

What is CVE-2018-5303?: An issue was discovered on the Impinj Speedway Connect R420 RFID Reader before 2.2.2. The license key parameter of the web application is vulnerable to Cross Site Scripting; this vulnerability allows an attacker to send malicious code to another user.
How severe is CVE-2018-5303?: CVE-2018-5303 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2018-5303 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-5303?: CVE-2018-5303 affects Impinj R420 Rfid Reader Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-5303?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-5303 published?: CVE-2018-5303 was published on 2018-05-11 and last updated on 2026-06-17.

References

http://blog.isecurion.com/2018/05/09/impinj-speedway-r420-rfid-reader/

Affected products (1)

cpe:2.3:o:impinj:r420_rfid_reader_firmware:*:*:*:*:*:*:*:*

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