Skip to content
Emerging threatsHigh

CVE-2015-1587Letterbox Vulnerability

Unrestricted file upload vulnerability in file_to_index.php in Maarch LetterBox 2.8 and earlier and GEC/GED 1.4 and earlier allows remote attackers to execute arbitrary PHP code by uploading a file with a PHP extension, then accessing it via a request to a predictable filename…

Published Feb 19, 2015 · Updated May 6, 2026

Key Facts

Patch immediately
  • CVE-2015-1587 is a high-severity vulnerability (CVSS 7.5 v2) affecting Gec\/ged (Maarch), Letterbox (Maarch).
  • It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
  • EPSS estimates a 43% probability of exploitation in the next 30 days.
  • Fixed versions are available, including Gec\/ged 1.4, Letterbox 2.8.
  • Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.

Scores

CVSS v2

7.5

AV:N/AC:L/Au:N/C:P/I:P/A:P

EPSS (30-day exploit likelihood)

43%

Higher than 98.7% of all scored CVEs

Exploit maturity

Weaponized

ATLAS score

54/100

Publication score, see How it works

Exploitation Verdict

KEV listed

Not listed

Federal due date

None

No federal due date

Ransomware use

Not reported

Attributed actors

None named

Exploit & Defence Guidance

Exploit maturity

Weaponized

Public exploit code

4

Proof-of-concept links

In-the-wild evidence

1

Reports of active use

Description

Unrestricted file upload vulnerability in file_to_index.php in Maarch LetterBox 2.8 and earlier and GEC/GED 1.4 and earlier allows remote attackers to execute arbitrary PHP code by uploading a file with a PHP extension, then accessing it via a request to a predictable filename in tmp/.

Affected Products

2 affected entries in total
ProductAffected versionsFixed in
Gec\/gedMaarchSee advisory1.4
LetterboxMaarchSee advisory2.8

Patched Releases

Gec\/ged

1.4

Letterbox

2.8

Timeline

  1. Publicly disclosed

    Feb 19, 2015

  2. Last updated

    May 6, 2026

FAQ

Common Questions.

Is CVE-2015-1587 On Your Attack Surface?

Brandefense matches it against the products discovered on your perimeter and opens a finding the day a CVE like this is listed.

Request A Demo

Figures as of Oct 20, 2026. Compiled by Brandefense technologies from public vulnerability catalogs; scoring as described in How it works.

To report an error, contact Brandefense.