---
id: "CVE-2026-124253"
page: "https://infrastack.ai/live/CVE-2026-124253"
kind: "vulnerability"
aliases: ["CVE-2026-124253"]
title: "Calculated Fields Form WordPress plugin: DOM-based XSS through version 5.5.2.8"
severity: "high"
cvss: 7.1
epss: null
exploited: false
status: "open"
category: "package"
products: [{"name": "calculated-fields-form", "fixed": ["5.5.2.9"], "affected": "<= 5.5.2.8", "ecosystem": "vendor"}]
ecosystems: ["vendor"]
tags: ["calculated-fields-form", "codepeople", "package", "unauthenticated", "wordpress", "xss"]
not_affected_if: ["plugin-not-installed", "version-5.5.2.9-or-later"]
published_at: "2026-11-11T11:17:16+00:00"
first_seen_at: "2026-11-11T11:26:56+00:00"
updated_at: "2026-11-11T11:28:01+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-124253", "first_seen_at": "2026-11-11T11:26:56+00:00"}, {"source": "analyst", "url": "https://patchstack.com/database/wordpress/plugin/calculated-fields-form/vulnerability/wordpress-calculated-fields-form-plugin-5-5-2-8-cross-site-scripting-xss-vulnerability", "first_seen_at": "2026-11-11T11:28:01+00:00", "cites": ["https://patchstack.com/database/wordpress/plugin/calculated-fields-form/vulnerability/wordpress-calculated-fields-form-plugin-5-5-2-8-cross-site-scripting-xss-vulnerability", "https://wordpress.org/plugins/calculated-fields-form/"]}]
exploit_sources: []
---

# Calculated Fields Form WordPress plugin: DOM-based XSS through version 5.5.2.8

Link for people: https://infrastack.ai/live/CVE-2026-124253 (this .md is for agents)

DOM-based XSS in the Calculated Fields Form WordPress plugin (codepeople) through 5.5.2.8, exploitable by an unauthenticated attacker when a victim is tricked into interacting (e.g. a crafted link). Fixed in 5.5.2.9. No exploitation or public PoC known.

_Summary, check and fix written by a model from the sources; labelled as such._

## Affected

- vendor:calculated-fields-form affected <= 5.5.2.8 fixed 5.5.2.9

## How to check

In WordPress admin > Plugins, or run: wp plugin get calculated-fields-form --field=version. Versions <= 5.5.2.8 are vulnerable; 5.5.2.9 is patched. Only matters if the plugin is installed and active.

## Fix

Update the Calculated Fields Form plugin to 5.5.2.9 or later (per Patchstack; vendor changelog not read).

## Timeline

- 2026-11-11T11:26:56+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-124253
- 2026-11-11T11:28:01+00:00 analyst https://patchstack.com/database/wordpress/plugin/calculated-fields-form/vulnerability/wordpress-calculated-fields-form-plugin-5-5-2-8-cross-site-scripting-xss-vulnerability — Patchstack (reporter/CNA) lists <=5.5.2.8 vulnerable, 5.5.2.9 patched, unauthenticated, user interaction required. Vendor changelog not readable, so nothing marked verified.

## Documents

- [advisory] Patchstack: Calculated Fields Form <= 5.5.2.8 XSS https://patchstack.com/database/wordpress/plugin/calculated-fields-form/vulnerability/wordpress-calculated-fields-form-plugin-5-5-2-8-cross-site-scripting-xss-vulnerability
- [mentions] Calculated Fields Form plugin page (WordPress.org) https://wordpress.org/plugins/calculated-fields-form/

## From the sources

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in codepeople Calculated Fields Form calculated-fields-form allows DOM-Based XSS.This issue affects Calculated Fields Form: from n/a through 5.5.2.8.

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