CVE-2020-5271Network attack vector

Reflected XSS via unnormalized dashboard dates

Published Apr 20, 2020 · Updated Aug 4, 2024

Reflected XSS in PrestaShop 1.6.0.0 through 1.7.6.4 allows remote authenticated users to inject script via dashboard date filters. HelperCalendar::setDateFrom and setDateTo retain attacker-controlled date_from and date_to strings without parsing or normalizing them before dashboard rendering. A signed-in back-office user must open the crafted dashboard request, causing script execution in that user's browser context and exposing dashboard data.

CVSS severity4.1
Medium
EPSS probability0.81%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reflected XSS in PrestaShop 1.6.0.0 through 1.7.6.4 allows remote authenticated users to inject script via dashboard date filters. HelperCalendar::setDateFrom and setDateTo retain attacker-controlled date_from and date_to strings without parsing or normalizing them before dashboard rendering. A signed-in back-office user must open the crafted dashboard request, causing script execution in that user's browser context and exposing dashboard data.

The record

CVE
CVE-2020-5271
Published
Apr 20, 2020
Updated
Aug 4, 2024
Vendor
PrestaShop
Product
PrestaShop
Classifications
CWE-79, T1203
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 20, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=>= 1.6.0.0, < 1.7.6.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

PrestaShop · PrestaShopversion=>= 1.6.0.0, < 1.7.6.5

Published CVSS scores

6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
4.3NIST NVDAV:N/AC:M/Au:N/C:N/I:P/A:N
4.1GitHub CNACVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1203Exploitation for Client Execution

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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