CVE-2026-27964Disclosure

LOWCVSS 3.9 · LOW

Signal is active with 2 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

FacturaScripts is an open source accounting and invoicing software. Versions 2025.7 and prior contain a Reflected Cross-Site Scripting (XSS) vulnerability through the fsNick cookie parameter. The application reflects the cookie's value directly into the HTML without sanitization. The fsNick cookie is rendered into the DOM without encoding. While the server does reject the modified session and forces a logout, the HTML containing the payload reaches the browser first. This lets the script execute immediately upon load, effectively beating the redirect. This issue has been fixed in version 2025.8.

0.0/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-79

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

STABLE

Threat summary

  • 3 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Technical details provided in 3 signals
  • Disclosure: 3 classified signals
  • Peaked at 2 mentions on most recent observed day (2026-05-19)
  • 3 total mentions across 2 days

Deep dive

Activity timeline3 mentions / 2d
01122Mentions · 2026-05-18: 1Mentions · 2026-05-19: 2Technical Details · 2026-05-18: 1Technical Details · 2026-05-19: 205-1805-19
Signal classification1 categories
Disclosure
3100.0%
Referenced assets3 URLs
Classification over time
DateTotalLabels
2026-05-181
Disclosure1
2026-05-192
Disclosure2
Full discourse3 posts
  • Infoflowcloud@infoflowcloud
    Disclosure

    🚨*CVE* CVE-2026-27964 FacturaScripts is an open source accounting and invoicing software. Versions 2025.7 and prior contain a Reflected Cross-Site Scripting (XSS) vulnerability through the… https://www.cve.org/CVERecord?id=CVE-2026-27964 ----- Traducción: CVE-2026-27964 Fac… http://infoflow.cloud`

    Post summary

    CVE‑2026‑27964 is disclosed as a Reflected XSS flaw affecting FacturaScripts 2025.7 and earlier, with a link to the CVE record but no PoC, exploit, or patch information provided.

    0000050
    78 followersView on X
  • CVE@CVEnew
    Disclosure

    CVE-2026-27964 FacturaScripts is an open source accounting and invoicing software. Versions 2025.7 and prior contain a Reflected Cross-Site Scripting (XSS) vulnerability through the… https://www.cve.org/CVERecord?id=CVE-2026-27964

    Post summary

    The post announces a new reflected XSS vulnerability in FacturaScripts version 2025.7 and prior, with no PoC, exploit, or patch details provided.

    00000188
    57.5K followersView on X
  • Vulmon Vulnerability Feed@VulmonFeeds
    Disclosure

    CVE-2026-27964 Reflected XSS Vulnerability in FacturaScripts 2025.7 via fsNick Cookie Parameter https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-27964

    Post summary

    The post announces a Reflected XSS vulnerability (CVE-2026-27964) found in FacturaScripts 2025.7 via the fsNick cookie, but provides no PoC, exploit, patch, or active usage information.

    0000062
    4.0K followersView on X

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